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Finding the Fourth Proportional to 5,167.88, 7,741.44 and 2,390.66

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Solution

The fourth proportional to 5,167.88, 7,741.44 and 2,390.66 is: 3,581.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,167.88 : 7,741.44 = 2,390.66 : x
  2. Step 2: Convert to fraction form
    5,167.88/7,741.44 = 2,390.66/x
  3. Step 3: Cross multiply
    5,167.88x = 7,741.44 × 2,390.66
  4. Step 4: Simplify right side
    5,167.88x = 18,507,150.95
  5. Step 5: Solve for x
    x = 18,507,150.95/5,167.88
  6. Step 6: Final answer
    x = 3,581.19

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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.