Home / 5,396.42-7,447.13-3,159.61

Finding the Fourth Proportional to 5,396.42, 7,447.13 and 3,159.61

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Solution

The fourth proportional to 5,396.42, 7,447.13 and 3,159.61 is: 4,360.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,396.42 : 7,447.13 = 3,159.61 : x
  2. Step 2: Convert to fraction form
    5,396.42/7,447.13 = 3,159.61/x
  3. Step 3: Cross multiply
    5,396.42x = 7,447.13 × 3,159.61
  4. Step 4: Simplify right side
    5,396.42x = 23,530,026.42
  5. Step 5: Solve for x
    x = 23,530,026.42/5,396.42
  6. Step 6: Final answer
    x = 4,360.30

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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.