Home / 3,691.68-5,537.76-1,226.40

Finding the Fourth Proportional to 3,691.68, 5,537.76 and 1,226.40

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Solution

The fourth proportional to 3,691.68, 5,537.76 and 1,226.40 is: 1,839.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,691.68 : 5,537.76 = 1,226.40 : x
  2. Step 2: Convert to fraction form
    3,691.68/5,537.76 = 1,226.40/x
  3. Step 3: Cross multiply
    3,691.68x = 5,537.76 × 1,226.40
  4. Step 4: Simplify right side
    3,691.68x = 6,791,508.86
  5. Step 5: Solve for x
    x = 6,791,508.86/3,691.68
  6. Step 6: Final answer
    x = 1,839.68

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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.