Home / 3,724.24-5,139.28-2,231.84

Finding the Fourth Proportional to 3,724.24, 5,139.28 and 2,231.84

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Solution

The fourth proportional to 3,724.24, 5,139.28 and 2,231.84 is: 3,079.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,724.24 : 5,139.28 = 2,231.84 : x
  2. Step 2: Convert to fraction form
    3,724.24/5,139.28 = 2,231.84/x
  3. Step 3: Cross multiply
    3,724.24x = 5,139.28 × 2,231.84
  4. Step 4: Simplify right side
    3,724.24x = 11,470,050.68
  5. Step 5: Solve for x
    x = 11,470,050.68/3,724.24
  6. Step 6: Final answer
    x = 3,079.84

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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.