Home / 3,872.13-5,343.57-2,193.61

Finding the Fourth Proportional to 3,872.13, 5,343.57 and 2,193.61

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Solution

The fourth proportional to 3,872.13, 5,343.57 and 2,193.61 is: 3,027.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,872.13 : 5,343.57 = 2,193.61 : x
  2. Step 2: Convert to fraction form
    3,872.13/5,343.57 = 2,193.61/x
  3. Step 3: Cross multiply
    3,872.13x = 5,343.57 × 2,193.61
  4. Step 4: Simplify right side
    3,872.13x = 11,721,690.22
  5. Step 5: Solve for x
    x = 11,721,690.22/3,872.13
  6. Step 6: Final answer
    x = 3,027.20

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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.