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Finding the Fourth Proportional to 6,410.76, 8,846.98 and 3,616.24

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Solution

The fourth proportional to 6,410.76, 8,846.98 and 3,616.24 is: 4,990.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,410.76 : 8,846.98 = 3,616.24 : x
  2. Step 2: Convert to fraction form
    6,410.76/8,846.98 = 3,616.24/x
  3. Step 3: Cross multiply
    6,410.76x = 8,846.98 × 3,616.24
  4. Step 4: Simplify right side
    6,410.76x = 31,992,802.96
  5. Step 5: Solve for x
    x = 31,992,802.96/6,410.76
  6. Step 6: Final answer
    x = 4,990.49

Related Problems

Find fourth proportional to 3,205.38, 4,423.49 and 1,808.12
Half scale
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Double scale
Find fourth proportional to 6,411.76, 8,848.36 and 3,617.24
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.