Home / 3,943.45-5,441.71-2,175.07

Finding the Fourth Proportional to 3,943.45, 5,441.71 and 2,175.07

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Solution

The fourth proportional to 3,943.45, 5,441.71 and 2,175.07 is: 3,001.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,943.45 : 5,441.71 = 2,175.07 : x
  2. Step 2: Convert to fraction form
    3,943.45/5,441.71 = 2,175.07/x
  3. Step 3: Cross multiply
    3,943.45x = 5,441.71 × 2,175.07
  4. Step 4: Simplify right side
    3,943.45x = 11,836,062.09
  5. Step 5: Solve for x
    x = 11,836,062.09/3,943.45
  6. Step 6: Final answer
    x = 3,001.45

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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.