Home / 3,943.63-5,442.23-2,175.20

Finding the Fourth Proportional to 3,943.63, 5,442.23 and 2,175.20

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Solution

The fourth proportional to 3,943.63, 5,442.23 and 2,175.20 is: 3,001.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,943.63 : 5,442.23 = 2,175.20 : x
  2. Step 2: Convert to fraction form
    3,943.63/5,442.23 = 2,175.20/x
  3. Step 3: Cross multiply
    3,943.63x = 5,442.23 × 2,175.20
  4. Step 4: Simplify right side
    3,943.63x = 11,837,938.70
  5. Step 5: Solve for x
    x = 11,837,938.70/3,943.63
  6. Step 6: Final answer
    x = 3,001.79

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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.