Home / 3,972.32-5,481.78-2,293.70

Finding the Fourth Proportional to 3,972.32, 5,481.78 and 2,293.70

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Solution

The fourth proportional to 3,972.32, 5,481.78 and 2,293.70 is: 3,165.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,972.32 : 5,481.78 = 2,293.70 : x
  2. Step 2: Convert to fraction form
    3,972.32/5,481.78 = 2,293.70/x
  3. Step 3: Cross multiply
    3,972.32x = 5,481.78 × 2,293.70
  4. Step 4: Simplify right side
    3,972.32x = 12,573,558.79
  5. Step 5: Solve for x
    x = 12,573,558.79/3,972.32
  6. Step 6: Final answer
    x = 3,165.29

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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.