Home / 5,417.41-8,120.82-2,643.97

Finding the Fourth Proportional to 5,417.41, 8,120.82 and 2,643.97

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Solution

The fourth proportional to 5,417.41, 8,120.82 and 2,643.97 is: 3,963.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,417.41 : 8,120.82 = 2,643.97 : x
  2. Step 2: Convert to fraction form
    5,417.41/8,120.82 = 2,643.97/x
  3. Step 3: Cross multiply
    5,417.41x = 8,120.82 × 2,643.97
  4. Step 4: Simplify right side
    5,417.41x = 21,471,204.46
  5. Step 5: Solve for x
    x = 21,471,204.46/5,417.41
  6. Step 6: Final answer
    x = 3,963.37

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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.