Home / 3,943.89-5,442.57-2,175.60

Finding the Fourth Proportional to 3,943.89, 5,442.57 and 2,175.60

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Solution

The fourth proportional to 3,943.89, 5,442.57 and 2,175.60 is: 3,002.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,943.89 : 5,442.57 = 2,175.60 : x
  2. Step 2: Convert to fraction form
    3,943.89/5,442.57 = 2,175.60/x
  3. Step 3: Cross multiply
    3,943.89x = 5,442.57 × 2,175.60
  4. Step 4: Simplify right side
    3,943.89x = 11,840,855.29
  5. Step 5: Solve for x
    x = 11,840,855.29/3,943.89
  6. Step 6: Final answer
    x = 3,002.33

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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.