Home / 5,279.22-7,920.73-2,470.53

Finding the Fourth Proportional to 5,279.22, 7,920.73 and 2,470.53

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Solution

The fourth proportional to 5,279.22, 7,920.73 and 2,470.53 is: 3,706.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,279.22 : 7,920.73 = 2,470.53 : x
  2. Step 2: Convert to fraction form
    5,279.22/7,920.73 = 2,470.53/x
  3. Step 3: Cross multiply
    5,279.22x = 7,920.73 × 2,470.53
  4. Step 4: Simplify right side
    5,279.22x = 19,568,401.09
  5. Step 5: Solve for x
    x = 19,568,401.09/5,279.22
  6. Step 6: Final answer
    x = 3,706.68

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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.