Home / 5,750-7,938.72-4,488.88

Finding the Fourth Proportional to 5,750, 7,938.72 and 4,488.88

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Solution

The fourth proportional to 5,750, 7,938.72 and 4,488.88 is: 6,197.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,750 : 7,938.72 = 4,488.88 : x
  2. Step 2: Convert to fraction form
    5,750/7,938.72 = 4,488.88/x
  3. Step 3: Cross multiply
    5,750x = 7,938.72 × 4,488.88
  4. Step 4: Simplify right side
    5,750x = 35,635,961.43
  5. Step 5: Solve for x
    x = 35,635,961.43/5,750
  6. Step 6: Final answer
    x = 6,197.56

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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.