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Finding the Fourth Proportional to 1,677.23, 2,516.54 and 752.55

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Solution

The fourth proportional to 1,677.23, 2,516.54 and 752.55 is: 1,129.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,677.23 : 2,516.54 = 752.55 : x
  2. Step 2: Convert to fraction form
    1,677.23/2,516.54 = 752.55/x
  3. Step 3: Cross multiply
    1,677.23x = 2,516.54 × 752.55
  4. Step 4: Simplify right side
    1,677.23x = 1,893,818.41
  5. Step 5: Solve for x
    x = 1,893,818.41/1,677.23
  6. Step 6: Final answer
    x = 1,129.13

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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.