Home / 5,560.74-7,680.12-3,789.30

Finding the Fourth Proportional to 5,560.74, 7,680.12 and 3,789.30

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Solution

The fourth proportional to 5,560.74, 7,680.12 and 3,789.30 is: 5,233.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,560.74 : 7,680.12 = 3,789.30 : x
  2. Step 2: Convert to fraction form
    5,560.74/7,680.12 = 3,789.30/x
  3. Step 3: Cross multiply
    5,560.74x = 7,680.12 × 3,789.30
  4. Step 4: Simplify right side
    5,560.74x = 29,102,278.72
  5. Step 5: Solve for x
    x = 29,102,278.72/5,560.74
  6. Step 6: Final answer
    x = 5,233.53

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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.