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Finding the Fourth Proportional to 954.39, 1,316.98 and 534.71

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Solution

The fourth proportional to 954.39, 1,316.98 and 534.71 is: 737.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    954.39 : 1,316.98 = 534.71 : x
  2. Step 2: Convert to fraction form
    954.39/1,316.98 = 534.71/x
  3. Step 3: Cross multiply
    954.39x = 1,316.98 × 534.71
  4. Step 4: Simplify right side
    954.39x = 704,202.38
  5. Step 5: Solve for x
    x = 704,202.38/954.39
  6. Step 6: Final answer
    x = 737.86

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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.