Home / 3,422.08-5,128.62-1,862.74

Finding the Fourth Proportional to 3,422.08, 5,128.62 and 1,862.74

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Solution

The fourth proportional to 3,422.08, 5,128.62 and 1,862.74 is: 2,791.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,422.08 : 5,128.62 = 1,862.74 : x
  2. Step 2: Convert to fraction form
    3,422.08/5,128.62 = 1,862.74/x
  3. Step 3: Cross multiply
    3,422.08x = 5,128.62 × 1,862.74
  4. Step 4: Simplify right side
    3,422.08x = 9,553,285.62
  5. Step 5: Solve for x
    x = 9,553,285.62/3,422.08
  6. Step 6: Final answer
    x = 2,791.66

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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.