Home / 3,943.90-5,442.54-2,175.58

Finding the Fourth Proportional to 3,943.90, 5,442.54 and 2,175.58

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Solution

The fourth proportional to 3,943.90, 5,442.54 and 2,175.58 is: 3,002.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,943.90 : 5,442.54 = 2,175.58 : x
  2. Step 2: Convert to fraction form
    3,943.90/5,442.54 = 2,175.58/x
  3. Step 3: Cross multiply
    3,943.90x = 5,442.54 × 2,175.58
  4. Step 4: Simplify right side
    3,943.90x = 11,840,681.17
  5. Step 5: Solve for x
    x = 11,840,681.17/3,943.90
  6. Step 6: Final answer
    x = 3,002.28

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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.