Home / 5,129.19-7,687.71-2,353.55

Finding the Fourth Proportional to 5,129.19, 7,687.71 and 2,353.55

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Solution

The fourth proportional to 5,129.19, 7,687.71 and 2,353.55 is: 3,527.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,129.19 : 7,687.71 = 2,353.55 : x
  2. Step 2: Convert to fraction form
    5,129.19/7,687.71 = 2,353.55/x
  3. Step 3: Cross multiply
    5,129.19x = 7,687.71 × 2,353.55
  4. Step 4: Simplify right side
    5,129.19x = 18,093,371.43
  5. Step 5: Solve for x
    x = 18,093,371.43/5,129.19
  6. Step 6: Final answer
    x = 3,527.53

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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.