Home / 1,166.20-1,610.10-724.52

Finding the Fourth Proportional to 1,166.20, 1,610.10 and 724.52

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Solution

The fourth proportional to 1,166.20, 1,610.10 and 724.52 is: 1,000.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,166.20 : 1,610.10 = 724.52 : x
  2. Step 2: Convert to fraction form
    1,166.20/1,610.10 = 724.52/x
  3. Step 3: Cross multiply
    1,166.20x = 1,610.10 × 724.52
  4. Step 4: Simplify right side
    1,166.20x = 1,166,549.65
  5. Step 5: Solve for x
    x = 1,166,549.65/1,166.20
  6. Step 6: Final answer
    x = 1,000.30

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1.5x scale

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.