Home / 3,724.65-5,138.87-2,152.17

Finding the Fourth Proportional to 3,724.65, 5,138.87 and 2,152.17

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Solution

The fourth proportional to 3,724.65, 5,138.87 and 2,152.17 is: 2,969.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,724.65 : 5,138.87 = 2,152.17 : x
  2. Step 2: Convert to fraction form
    3,724.65/5,138.87 = 2,152.17/x
  3. Step 3: Cross multiply
    3,724.65x = 5,138.87 × 2,152.17
  4. Step 4: Simplify right side
    3,724.65x = 11,059,711.09
  5. Step 5: Solve for x
    x = 11,059,711.09/3,724.65
  6. Step 6: Final answer
    x = 2,969.33

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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.