Home / 3,123.80-4,685.60-932.52

Finding the Fourth Proportional to 3,123.80, 4,685.60 and 932.52

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Solution

The fourth proportional to 3,123.80, 4,685.60 and 932.52 is: 1,398.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,123.80 : 4,685.60 = 932.52 : x
  2. Step 2: Convert to fraction form
    3,123.80/4,685.60 = 932.52/x
  3. Step 3: Cross multiply
    3,123.80x = 4,685.60 × 932.52
  4. Step 4: Simplify right side
    3,123.80x = 4,369,415.71
  5. Step 5: Solve for x
    x = 4,369,415.71/3,123.80
  6. Step 6: Final answer
    x = 1,398.75

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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.