Home / 3,724.82-5,587.24-1,127.78

Finding the Fourth Proportional to 3,724.82, 5,587.24 and 1,127.78

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Solution

The fourth proportional to 3,724.82, 5,587.24 and 1,127.78 is: 1,691.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,724.82 : 5,587.24 = 1,127.78 : x
  2. Step 2: Convert to fraction form
    3,724.82/5,587.24 = 1,127.78/x
  3. Step 3: Cross multiply
    3,724.82x = 5,587.24 × 1,127.78
  4. Step 4: Simplify right side
    3,724.82x = 6,301,177.53
  5. Step 5: Solve for x
    x = 6,301,177.53/3,724.82
  6. Step 6: Final answer
    x = 1,691.67

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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.