Home / 3,132.80-4,695.60-1,282.70

Finding the Fourth Proportional to 3,132.80, 4,695.60 and 1,282.70

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Solution

The fourth proportional to 3,132.80, 4,695.60 and 1,282.70 is: 1,922.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,132.80 : 4,695.60 = 1,282.70 : x
  2. Step 2: Convert to fraction form
    3,132.80/4,695.60 = 1,282.70/x
  3. Step 3: Cross multiply
    3,132.80x = 4,695.60 × 1,282.70
  4. Step 4: Simplify right side
    3,132.80x = 6,023,046.12
  5. Step 5: Solve for x
    x = 6,023,046.12/3,132.80
  6. Step 6: Final answer
    x = 1,922.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.