Home / 1,263.30-1,744.20-932.10

Finding the Fourth Proportional to 1,263.30, 1,744.20 and 932.10

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Solution

The fourth proportional to 1,263.30, 1,744.20 and 932.10 is: 1,286.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,263.30 : 1,744.20 = 932.10 : x
  2. Step 2: Convert to fraction form
    1,263.30/1,744.20 = 932.10/x
  3. Step 3: Cross multiply
    1,263.30x = 1,744.20 × 932.10
  4. Step 4: Simplify right side
    1,263.30x = 1,625,768.82
  5. Step 5: Solve for x
    x = 1,625,768.82/1,263.30
  6. Step 6: Final answer
    x = 1,286.92

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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.