Home / 2,248.20-3,372.40-767.40

Finding the Fourth Proportional to 2,248.20, 3,372.40 and 767.40

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Solution

The fourth proportional to 2,248.20, 3,372.40 and 767.40 is: 1,151.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,248.20 : 3,372.40 = 767.40 : x
  2. Step 2: Convert to fraction form
    2,248.20/3,372.40 = 767.40/x
  3. Step 3: Cross multiply
    2,248.20x = 3,372.40 × 767.40
  4. Step 4: Simplify right side
    2,248.20x = 2,587,979.76
  5. Step 5: Solve for x
    x = 2,587,979.76/2,248.20
  6. Step 6: Final answer
    x = 1,151.13

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1.5x scale

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.