Home / 3,724.76-5,139.42-2,152.46

Finding the Fourth Proportional to 3,724.76, 5,139.42 and 2,152.46

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Solution

The fourth proportional to 3,724.76, 5,139.42 and 2,152.46 is: 2,969.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,724.76 : 5,139.42 = 2,152.46 : x
  2. Step 2: Convert to fraction form
    3,724.76/5,139.42 = 2,152.46/x
  3. Step 3: Cross multiply
    3,724.76x = 5,139.42 × 2,152.46
  4. Step 4: Simplify right side
    3,724.76x = 11,062,395.97
  5. Step 5: Solve for x
    x = 11,062,395.97/3,724.76
  6. Step 6: Final answer
    x = 2,969.96

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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.