Home / 5,278.20-7,281.96-3,039

Finding the Fourth Proportional to 5,278.20, 7,281.96 and 3,039

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Solution

The fourth proportional to 5,278.20, 7,281.96 and 3,039 is: 4,192.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,278.20 : 7,281.96 = 3,039 : x
  2. Step 2: Convert to fraction form
    5,278.20/7,281.96 = 3,039/x
  3. Step 3: Cross multiply
    5,278.20x = 7,281.96 × 3,039
  4. Step 4: Simplify right side
    5,278.20x = 22,129,876.44
  5. Step 5: Solve for x
    x = 22,129,876.44/5,278.20
  6. Step 6: Final answer
    x = 4,192.69

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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.