Home / 1,108.30-1,529.42-610.92

Finding the Fourth Proportional to 1,108.30, 1,529.42 and 610.92

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Solution

The fourth proportional to 1,108.30, 1,529.42 and 610.92 is: 843.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,108.30 : 1,529.42 = 610.92 : x
  2. Step 2: Convert to fraction form
    1,108.30/1,529.42 = 610.92/x
  3. Step 3: Cross multiply
    1,108.30x = 1,529.42 × 610.92
  4. Step 4: Simplify right side
    1,108.30x = 934,360.53
  5. Step 5: Solve for x
    x = 934,360.53/1,108.30
  6. Step 6: Final answer
    x = 843.06

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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.