Home / 5,414.18-8,121.84-2,642.36

Finding the Fourth Proportional to 5,414.18, 8,121.84 and 2,642.36

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Solution

The fourth proportional to 5,414.18, 8,121.84 and 2,642.36 is: 3,963.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,414.18 : 8,121.84 = 2,642.36 : x
  2. Step 2: Convert to fraction form
    5,414.18/8,121.84 = 2,642.36/x
  3. Step 3: Cross multiply
    5,414.18x = 8,121.84 × 2,642.36
  4. Step 4: Simplify right side
    5,414.18x = 21,460,825.14
  5. Step 5: Solve for x
    x = 21,460,825.14/5,414.18
  6. Step 6: Final answer
    x = 3,963.82

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1.5x scale

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.