Home / 3,943.90-5,442.59-2,175.62

Finding the Fourth Proportional to 3,943.90, 5,442.59 and 2,175.62

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Solution

The fourth proportional to 3,943.90, 5,442.59 and 2,175.62 is: 3,002.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,943.90 : 5,442.59 = 2,175.62 : x
  2. Step 2: Convert to fraction form
    3,943.90/5,442.59 = 2,175.62/x
  3. Step 3: Cross multiply
    3,943.90x = 5,442.59 × 2,175.62
  4. Step 4: Simplify right side
    3,943.90x = 11,841,007.66
  5. Step 5: Solve for x
    x = 11,841,007.66/3,943.90
  6. Step 6: Final answer
    x = 3,002.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.