Home / 3,123.92-4,685.19-932.36

Finding the Fourth Proportional to 3,123.92, 4,685.19 and 932.36

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Solution

The fourth proportional to 3,123.92, 4,685.19 and 932.36 is: 1,398.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,123.92 : 4,685.19 = 932.36 : x
  2. Step 2: Convert to fraction form
    3,123.92/4,685.19 = 932.36/x
  3. Step 3: Cross multiply
    3,123.92x = 4,685.19 × 932.36
  4. Step 4: Simplify right side
    3,123.92x = 4,368,288.42
  5. Step 5: Solve for x
    x = 4,368,288.42/3,123.92
  6. Step 6: Final answer
    x = 1,398.34

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1.5x scale

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.