Home / 5,279.03-7,918.38-2,507.69

Finding the Fourth Proportional to 5,279.03, 7,918.38 and 2,507.69

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Solution

The fourth proportional to 5,279.03, 7,918.38 and 2,507.69 is: 3,761.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,279.03 : 7,918.38 = 2,507.69 : x
  2. Step 2: Convert to fraction form
    5,279.03/7,918.38 = 2,507.69/x
  3. Step 3: Cross multiply
    5,279.03x = 7,918.38 × 2,507.69
  4. Step 4: Simplify right side
    5,279.03x = 19,856,829.80
  5. Step 5: Solve for x
    x = 19,856,829.80/5,279.03
  6. Step 6: Final answer
    x = 3,761.45

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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.