Home / 5,279.52-7,917.39-1,581.06

Finding the Fourth Proportional to 5,279.52, 7,917.39 and 1,581.06

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Solution

The fourth proportional to 5,279.52, 7,917.39 and 1,581.06 is: 2,371.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,279.52 : 7,917.39 = 1,581.06 : x
  2. Step 2: Convert to fraction form
    5,279.52/7,917.39 = 1,581.06/x
  3. Step 3: Cross multiply
    5,279.52x = 7,917.39 × 1,581.06
  4. Step 4: Simplify right side
    5,279.52x = 12,517,868.63
  5. Step 5: Solve for x
    x = 12,517,868.63/5,279.52
  6. Step 6: Final answer
    x = 2,371.02

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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.