Home / 3,715.90-5,127.30-2,202.76

Finding the Fourth Proportional to 3,715.90, 5,127.30 and 2,202.76

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Solution

The fourth proportional to 3,715.90, 5,127.30 and 2,202.76 is: 3,039.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,715.90 : 5,127.30 = 2,202.76 : x
  2. Step 2: Convert to fraction form
    3,715.90/5,127.30 = 2,202.76/x
  3. Step 3: Cross multiply
    3,715.90x = 5,127.30 × 2,202.76
  4. Step 4: Simplify right side
    3,715.90x = 11,294,211.35
  5. Step 5: Solve for x
    x = 11,294,211.35/3,715.90
  6. Step 6: Final answer
    x = 3,039.43

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Half scale
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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.