Home / 5,115.18-7,672.94-1,417.46

Finding the Fourth Proportional to 5,115.18, 7,672.94 and 1,417.46

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Solution

The fourth proportional to 5,115.18, 7,672.94 and 1,417.46 is: 2,126.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,115.18 : 7,672.94 = 1,417.46 : x
  2. Step 2: Convert to fraction form
    5,115.18/7,672.94 = 1,417.46/x
  3. Step 3: Cross multiply
    5,115.18x = 7,672.94 × 1,417.46
  4. Step 4: Simplify right side
    5,115.18x = 10,876,040.08
  5. Step 5: Solve for x
    x = 10,876,040.08/5,115.18
  6. Step 6: Final answer
    x = 2,126.23

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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.