Home / 2,082.43-2,872.61-1,335.56

Finding the Fourth Proportional to 2,082.43, 2,872.61 and 1,335.56

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Solution

The fourth proportional to 2,082.43, 2,872.61 and 1,335.56 is: 1,842.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,082.43 : 2,872.61 = 1,335.56 : x
  2. Step 2: Convert to fraction form
    2,082.43/2,872.61 = 1,335.56/x
  3. Step 3: Cross multiply
    2,082.43x = 2,872.61 × 1,335.56
  4. Step 4: Simplify right side
    2,082.43x = 3,836,531.99
  5. Step 5: Solve for x
    x = 3,836,531.99/2,082.43
  6. Step 6: Final answer
    x = 1,842.34

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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.