Home / 1,248.08-1,720.44-932.87

Finding the Fourth Proportional to 1,248.08, 1,720.44 and 932.87

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Solution

The fourth proportional to 1,248.08, 1,720.44 and 932.87 is: 1,285.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,248.08 : 1,720.44 = 932.87 : x
  2. Step 2: Convert to fraction form
    1,248.08/1,720.44 = 932.87/x
  3. Step 3: Cross multiply
    1,248.08x = 1,720.44 × 932.87
  4. Step 4: Simplify right side
    1,248.08x = 1,604,946.86
  5. Step 5: Solve for x
    x = 1,604,946.86/1,248.08
  6. Step 6: Final answer
    x = 1,285.93

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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.