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Finding the Fourth Proportional to 2,487.98, 3,733.40 and 929.07

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Solution

The fourth proportional to 2,487.98, 3,733.40 and 929.07 is: 1,394.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,487.98 : 3,733.40 = 929.07 : x
  2. Step 2: Convert to fraction form
    2,487.98/3,733.40 = 929.07/x
  3. Step 3: Cross multiply
    2,487.98x = 3,733.40 × 929.07
  4. Step 4: Simplify right side
    2,487.98x = 3,468,592.26
  5. Step 5: Solve for x
    x = 3,468,592.26/2,487.98
  6. Step 6: Final answer
    x = 1,394.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.