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Finding the Fourth Proportional to 957.52, 1,434.57 and 738.55

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Solution

The fourth proportional to 957.52, 1,434.57 and 738.55 is: 1,106.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    957.52 : 1,434.57 = 738.55 : x
  2. Step 2: Convert to fraction form
    957.52/1,434.57 = 738.55/x
  3. Step 3: Cross multiply
    957.52x = 1,434.57 × 738.55
  4. Step 4: Simplify right side
    957.52x = 1,059,501.67
  5. Step 5: Solve for x
    x = 1,059,501.67/957.52
  6. Step 6: Final answer
    x = 1,106.51

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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.