Home / 3,723.92-5,138.64-2,152.52

Finding the Fourth Proportional to 3,723.92, 5,138.64 and 2,152.52

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Solution

The fourth proportional to 3,723.92, 5,138.64 and 2,152.52 is: 2,970.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,723.92 : 5,138.64 = 2,152.52 : x
  2. Step 2: Convert to fraction form
    3,723.92/5,138.64 = 2,152.52/x
  3. Step 3: Cross multiply
    3,723.92x = 5,138.64 × 2,152.52
  4. Step 4: Simplify right side
    3,723.92x = 11,061,025.37
  5. Step 5: Solve for x
    x = 11,061,025.37/3,723.92
  6. Step 6: Final answer
    x = 2,970.26

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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.