Home / 3,993.28-5,505.02-2,810.68

Finding the Fourth Proportional to 3,993.28, 5,505.02 and 2,810.68

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Solution

The fourth proportional to 3,993.28, 5,505.02 and 2,810.68 is: 3,874.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,993.28 : 5,505.02 = 2,810.68 : x
  2. Step 2: Convert to fraction form
    3,993.28/5,505.02 = 2,810.68/x
  3. Step 3: Cross multiply
    3,993.28x = 5,505.02 × 2,810.68
  4. Step 4: Simplify right side
    3,993.28x = 15,472,849.61
  5. Step 5: Solve for x
    x = 15,472,849.61/3,993.28
  6. Step 6: Final answer
    x = 3,874.72

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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.