Home / 3,147.20-4,343.35-2,083.13

Finding the Fourth Proportional to 3,147.20, 4,343.35 and 2,083.13

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Solution

The fourth proportional to 3,147.20, 4,343.35 and 2,083.13 is: 2,874.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,147.20 : 4,343.35 = 2,083.13 : x
  2. Step 2: Convert to fraction form
    3,147.20/4,343.35 = 2,083.13/x
  3. Step 3: Cross multiply
    3,147.20x = 4,343.35 × 2,083.13
  4. Step 4: Simplify right side
    3,147.20x = 9,047,778.97
  5. Step 5: Solve for x
    x = 9,047,778.97/3,147.20
  6. Step 6: Final answer
    x = 2,874.87

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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.