Home / 1,129.32-1,546.79-1,062.90

Finding the Fourth Proportional to 1,129.32, 1,546.79 and 1,062.90

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Solution

The fourth proportional to 1,129.32, 1,546.79 and 1,062.90 is: 1,455.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129.32 : 1,546.79 = 1,062.90 : x
  2. Step 2: Convert to fraction form
    1,129.32/1,546.79 = 1,062.90/x
  3. Step 3: Cross multiply
    1,129.32x = 1,546.79 × 1,062.90
  4. Step 4: Simplify right side
    1,129.32x = 1,644,077.78
  5. Step 5: Solve for x
    x = 1,644,077.78/1,129.32
  6. Step 6: Final answer
    x = 1,455.81

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.