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Finding the Fourth Proportional to 6,129.71, 8,459.94 and 3,476.55

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Solution

The fourth proportional to 6,129.71, 8,459.94 and 3,476.55 is: 4,798.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,129.71 : 8,459.94 = 3,476.55 : x
  2. Step 2: Convert to fraction form
    6,129.71/8,459.94 = 3,476.55/x
  3. Step 3: Cross multiply
    6,129.71x = 8,459.94 × 3,476.55
  4. Step 4: Simplify right side
    6,129.71x = 29,411,404.41
  5. Step 5: Solve for x
    x = 29,411,404.41/6,129.71
  6. Step 6: Final answer
    x = 4,798.17

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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.