Home / 5,159.15-7,121.30-3,034.56

Finding the Fourth Proportional to 5,159.15, 7,121.30 and 3,034.56

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Solution

The fourth proportional to 5,159.15, 7,121.30 and 3,034.56 is: 4,188.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,159.15 : 7,121.30 = 3,034.56 : x
  2. Step 2: Convert to fraction form
    5,159.15/7,121.30 = 3,034.56/x
  3. Step 3: Cross multiply
    5,159.15x = 7,121.30 × 3,034.56
  4. Step 4: Simplify right side
    5,159.15x = 21,610,012.13
  5. Step 5: Solve for x
    x = 21,610,012.13/5,159.15
  6. Step 6: Final answer
    x = 4,188.68

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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.