Home / 3,724.01-5,138.83-2,152.20

Finding the Fourth Proportional to 3,724.01, 5,138.83 and 2,152.20

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Solution

The fourth proportional to 3,724.01, 5,138.83 and 2,152.20 is: 2,969.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,724.01 : 5,138.83 = 2,152.20 : x
  2. Step 2: Convert to fraction form
    3,724.01/5,138.83 = 2,152.20/x
  3. Step 3: Cross multiply
    3,724.01x = 5,138.83 × 2,152.20
  4. Step 4: Simplify right side
    3,724.01x = 11,059,779.17
  5. Step 5: Solve for x
    x = 11,059,779.17/3,724.01
  6. Step 6: Final answer
    x = 2,969.86

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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.