Home / 6,411.30-8,846.45-3,616.80

Finding the Fourth Proportional to 6,411.30, 8,846.45 and 3,616.80

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Solution

The fourth proportional to 6,411.30, 8,846.45 and 3,616.80 is: 4,990.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,411.30 : 8,846.45 = 3,616.80 : x
  2. Step 2: Convert to fraction form
    6,411.30/8,846.45 = 3,616.80/x
  3. Step 3: Cross multiply
    6,411.30x = 8,846.45 × 3,616.80
  4. Step 4: Simplify right side
    6,411.30x = 31,995,840.36
  5. Step 5: Solve for x
    x = 31,995,840.36/6,411.30
  6. Step 6: Final answer
    x = 4,990.54

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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.