Home / 3,709.32-5,120.31-2,531.04

Finding the Fourth Proportional to 3,709.32, 5,120.31 and 2,531.04

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Solution

The fourth proportional to 3,709.32, 5,120.31 and 2,531.04 is: 3,493.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,709.32 : 5,120.31 = 2,531.04 : x
  2. Step 2: Convert to fraction form
    3,709.32/5,120.31 = 2,531.04/x
  3. Step 3: Cross multiply
    3,709.32x = 5,120.31 × 2,531.04
  4. Step 4: Simplify right side
    3,709.32x = 12,959,709.42
  5. Step 5: Solve for x
    x = 12,959,709.42/3,709.32
  6. Step 6: Final answer
    x = 3,493.82

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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.