Home / 5,053.40-7,581.12-2,131.70

Finding the Fourth Proportional to 5,053.40, 7,581.12 and 2,131.70

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Solution

The fourth proportional to 5,053.40, 7,581.12 and 2,131.70 is: 3,197.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,053.40 : 7,581.12 = 2,131.70 : x
  2. Step 2: Convert to fraction form
    5,053.40/7,581.12 = 2,131.70/x
  3. Step 3: Cross multiply
    5,053.40x = 7,581.12 × 2,131.70
  4. Step 4: Simplify right side
    5,053.40x = 16,160,635.60
  5. Step 5: Solve for x
    x = 16,160,635.60/5,053.40
  6. Step 6: Final answer
    x = 3,197.98

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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.