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Finding the Fourth Proportional to 6,142.76, 8,477.08 and 3,490.24

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Solution

The fourth proportional to 6,142.76, 8,477.08 and 3,490.24 is: 4,816.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,142.76 : 8,477.08 = 3,490.24 : x
  2. Step 2: Convert to fraction form
    6,142.76/8,477.08 = 3,490.24/x
  3. Step 3: Cross multiply
    6,142.76x = 8,477.08 × 3,490.24
  4. Step 4: Simplify right side
    6,142.76x = 29,587,043.70
  5. Step 5: Solve for x
    x = 29,587,043.70/6,142.76
  6. Step 6: Final answer
    x = 4,816.57

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Half scale
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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.