Home / 5,115.72-7,060.03-3,854.55

Finding the Fourth Proportional to 5,115.72, 7,060.03 and 3,854.55

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Solution

The fourth proportional to 5,115.72, 7,060.03 and 3,854.55 is: 5,319.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,115.72 : 7,060.03 = 3,854.55 : x
  2. Step 2: Convert to fraction form
    5,115.72/7,060.03 = 3,854.55/x
  3. Step 3: Cross multiply
    5,115.72x = 7,060.03 × 3,854.55
  4. Step 4: Simplify right side
    5,115.72x = 27,213,238.64
  5. Step 5: Solve for x
    x = 27,213,238.64/5,115.72
  6. Step 6: Final answer
    x = 5,319.53

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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.