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Finding the Fourth Proportional to 932.47, 1,286.39 and 746.23

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Solution

The fourth proportional to 932.47, 1,286.39 and 746.23 is: 1,029.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    932.47 : 1,286.39 = 746.23 : x
  2. Step 2: Convert to fraction form
    932.47/1,286.39 = 746.23/x
  3. Step 3: Cross multiply
    932.47x = 1,286.39 × 746.23
  4. Step 4: Simplify right side
    932.47x = 959,942.81
  5. Step 5: Solve for x
    x = 959,942.81/932.47
  6. Step 6: Final answer
    x = 1,029.46

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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.