Home / 5,049.89-7,575.87-2,128.20

Finding the Fourth Proportional to 5,049.89, 7,575.87 and 2,128.20

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Solution

The fourth proportional to 5,049.89, 7,575.87 and 2,128.20 is: 3,192.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,049.89 : 7,575.87 = 2,128.20 : x
  2. Step 2: Convert to fraction form
    5,049.89/7,575.87 = 2,128.20/x
  3. Step 3: Cross multiply
    5,049.89x = 7,575.87 × 2,128.20
  4. Step 4: Simplify right side
    5,049.89x = 16,122,966.53
  5. Step 5: Solve for x
    x = 16,122,966.53/5,049.89
  6. Step 6: Final answer
    x = 3,192.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.