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Finding the Fourth Proportional to 954.31, 1,317.00 and 534.69

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Solution

The fourth proportional to 954.31, 1,317.00 and 534.69 is: 737.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    954.31 : 1,317.00 = 534.69 : x
  2. Step 2: Convert to fraction form
    954.31/1,317.00 = 534.69/x
  3. Step 3: Cross multiply
    954.31x = 1,317.00 × 534.69
  4. Step 4: Simplify right side
    954.31x = 704,184.06
  5. Step 5: Solve for x
    x = 704,184.06/954.31
  6. Step 6: Final answer
    x = 737.90

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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.