Home / 3,123.18-4,684.92-932.08

Finding the Fourth Proportional to 3,123.18, 4,684.92 and 932.08

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Solution

The fourth proportional to 3,123.18, 4,684.92 and 932.08 is: 1,398.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,123.18 : 4,684.92 = 932.08 : x
  2. Step 2: Convert to fraction form
    3,123.18/4,684.92 = 932.08/x
  3. Step 3: Cross multiply
    3,123.18x = 4,684.92 × 932.08
  4. Step 4: Simplify right side
    3,123.18x = 4,366,720.23
  5. Step 5: Solve for x
    x = 4,366,720.23/3,123.18
  6. Step 6: Final answer
    x = 1,398.16

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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.