Home / 1,108.10-1,529.10-610.68

Finding the Fourth Proportional to 1,108.10, 1,529.10 and 610.68

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Solution

The fourth proportional to 1,108.10, 1,529.10 and 610.68 is: 842.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,108.10 : 1,529.10 = 610.68 : x
  2. Step 2: Convert to fraction form
    1,108.10/1,529.10 = 610.68/x
  3. Step 3: Cross multiply
    1,108.10x = 1,529.10 × 610.68
  4. Step 4: Simplify right side
    1,108.10x = 933,790.79
  5. Step 5: Solve for x
    x = 933,790.79/1,108.10
  6. Step 6: Final answer
    x = 842.70

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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.