Home / 3,922.40-5,881.70-2,279.42

Finding the Fourth Proportional to 3,922.40, 5,881.70 and 2,279.42

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Solution

The fourth proportional to 3,922.40, 5,881.70 and 2,279.42 is: 3,418.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,922.40 : 5,881.70 = 2,279.42 : x
  2. Step 2: Convert to fraction form
    3,922.40/5,881.70 = 2,279.42/x
  3. Step 3: Cross multiply
    3,922.40x = 5,881.70 × 2,279.42
  4. Step 4: Simplify right side
    3,922.40x = 13,406,864.61
  5. Step 5: Solve for x
    x = 13,406,864.61/3,922.40
  6. Step 6: Final answer
    x = 3,418.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.