Home / 3,943.30-5,441.68-2,150.79

Finding the Fourth Proportional to 3,943.30, 5,441.68 and 2,150.79

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Solution

The fourth proportional to 3,943.30, 5,441.68 and 2,150.79 is: 2,968.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,943.30 : 5,441.68 = 2,150.79 : x
  2. Step 2: Convert to fraction form
    3,943.30/5,441.68 = 2,150.79/x
  3. Step 3: Cross multiply
    3,943.30x = 5,441.68 × 2,150.79
  4. Step 4: Simplify right side
    3,943.30x = 11,703,911.72
  5. Step 5: Solve for x
    x = 11,703,911.72/3,943.30
  6. Step 6: Final answer
    x = 2,968.05

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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.