Home / 3,418.74-5,126.31-1,339.29

Finding the Fourth Proportional to 3,418.74, 5,126.31 and 1,339.29

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Solution

The fourth proportional to 3,418.74, 5,126.31 and 1,339.29 is: 2,008.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,418.74 : 5,126.31 = 1,339.29 : x
  2. Step 2: Convert to fraction form
    3,418.74/5,126.31 = 1,339.29/x
  3. Step 3: Cross multiply
    3,418.74x = 5,126.31 × 1,339.29
  4. Step 4: Simplify right side
    3,418.74x = 6,865,615.72
  5. Step 5: Solve for x
    x = 6,865,615.72/3,418.74
  6. Step 6: Final answer
    x = 2,008.23

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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.