Home / 5,122.42-7,679.31-2,042.74

Finding the Fourth Proportional to 5,122.42, 7,679.31 and 2,042.74

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Solution

The fourth proportional to 5,122.42, 7,679.31 and 2,042.74 is: 3,062.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,122.42 : 7,679.31 = 2,042.74 : x
  2. Step 2: Convert to fraction form
    5,122.42/7,679.31 = 2,042.74/x
  3. Step 3: Cross multiply
    5,122.42x = 7,679.31 × 2,042.74
  4. Step 4: Simplify right side
    5,122.42x = 15,686,833.71
  5. Step 5: Solve for x
    x = 15,686,833.71/5,122.42
  6. Step 6: Final answer
    x = 3,062.39

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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.