Home / 5,279.26-7,920.26-1,581.41

Finding the Fourth Proportional to 5,279.26, 7,920.26 and 1,581.41

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Solution

The fourth proportional to 5,279.26, 7,920.26 and 1,581.41 is: 2,372.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,279.26 : 7,920.26 = 1,581.41 : x
  2. Step 2: Convert to fraction form
    5,279.26/7,920.26 = 1,581.41/x
  3. Step 3: Cross multiply
    5,279.26x = 7,920.26 × 1,581.41
  4. Step 4: Simplify right side
    5,279.26x = 12,525,178.37
  5. Step 5: Solve for x
    x = 12,525,178.37/5,279.26
  6. Step 6: Final answer
    x = 2,372.53

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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.