Home / 5,279.09-7,283.30-3,390.53

Finding the Fourth Proportional to 5,279.09, 7,283.30 and 3,390.53

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Solution

The fourth proportional to 5,279.09, 7,283.30 and 3,390.53 is: 4,677.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,279.09 : 7,283.30 = 3,390.53 : x
  2. Step 2: Convert to fraction form
    5,279.09/7,283.30 = 3,390.53/x
  3. Step 3: Cross multiply
    5,279.09x = 7,283.30 × 3,390.53
  4. Step 4: Simplify right side
    5,279.09x = 24,694,193.78
  5. Step 5: Solve for x
    x = 24,694,193.78/5,279.09
  6. Step 6: Final answer
    x = 4,677.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.