Home / 3,938.88-5,909.94-2,207.46

Finding the Fourth Proportional to 3,938.88, 5,909.94 and 2,207.46

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Solution

The fourth proportional to 3,938.88, 5,909.94 and 2,207.46 is: 3,312.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,938.88 : 5,909.94 = 2,207.46 : x
  2. Step 2: Convert to fraction form
    3,938.88/5,909.94 = 2,207.46/x
  3. Step 3: Cross multiply
    3,938.88x = 5,909.94 × 2,207.46
  4. Step 4: Simplify right side
    3,938.88x = 13,045,956.15
  5. Step 5: Solve for x
    x = 13,045,956.15/3,938.88
  6. Step 6: Final answer
    x = 3,312.10

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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.