Home / 5,118.42-7,679.79-3,042.39

Finding the Fourth Proportional to 5,118.42, 7,679.79 and 3,042.39

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Solution

The fourth proportional to 5,118.42, 7,679.79 and 3,042.39 is: 4,564.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,118.42 : 7,679.79 = 3,042.39 : x
  2. Step 2: Convert to fraction form
    5,118.42/7,679.79 = 3,042.39/x
  3. Step 3: Cross multiply
    5,118.42x = 7,679.79 × 3,042.39
  4. Step 4: Simplify right side
    5,118.42x = 23,364,916.30
  5. Step 5: Solve for x
    x = 23,364,916.30/5,118.42
  6. Step 6: Final answer
    x = 4,564.87

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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.