Home / 3,686.28-5,081.18-2,505.24

Finding the Fourth Proportional to 3,686.28, 5,081.18 and 2,505.24

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Solution

The fourth proportional to 3,686.28, 5,081.18 and 2,505.24 is: 3,453.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,686.28 : 5,081.18 = 2,505.24 : x
  2. Step 2: Convert to fraction form
    3,686.28/5,081.18 = 2,505.24/x
  3. Step 3: Cross multiply
    3,686.28x = 5,081.18 × 2,505.24
  4. Step 4: Simplify right side
    3,686.28x = 12,729,575.38
  5. Step 5: Solve for x
    x = 12,729,575.38/3,686.28
  6. Step 6: Final answer
    x = 3,453.23

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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.