Home / 5,538.15-7,641.72-3,180.44

Finding the Fourth Proportional to 5,538.15, 7,641.72 and 3,180.44

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Solution

The fourth proportional to 5,538.15, 7,641.72 and 3,180.44 is: 4,388.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,538.15 : 7,641.72 = 3,180.44 : x
  2. Step 2: Convert to fraction form
    5,538.15/7,641.72 = 3,180.44/x
  3. Step 3: Cross multiply
    5,538.15x = 7,641.72 × 3,180.44
  4. Step 4: Simplify right side
    5,538.15x = 24,304,031.96
  5. Step 5: Solve for x
    x = 24,304,031.96/5,538.15
  6. Step 6: Final answer
    x = 4,388.47

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1.5x scale

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.