Home / 5,418.43-8,130.87-2,340.43

Finding the Fourth Proportional to 5,418.43, 8,130.87 and 2,340.43

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Solution

The fourth proportional to 5,418.43, 8,130.87 and 2,340.43 is: 3,512.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,418.43 : 8,130.87 = 2,340.43 : x
  2. Step 2: Convert to fraction form
    5,418.43/8,130.87 = 2,340.43/x
  3. Step 3: Cross multiply
    5,418.43x = 8,130.87 × 2,340.43
  4. Step 4: Simplify right side
    5,418.43x = 19,029,711.75
  5. Step 5: Solve for x
    x = 19,029,711.75/5,418.43
  6. Step 6: Final answer
    x = 3,512.04

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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.