Home / 2,274.75-3,139.97-1,343.25

Finding the Fourth Proportional to 2,274.75, 3,139.97 and 1,343.25

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Solution

The fourth proportional to 2,274.75, 3,139.97 and 1,343.25 is: 1,854.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,274.75 : 3,139.97 = 1,343.25 : x
  2. Step 2: Convert to fraction form
    2,274.75/3,139.97 = 1,343.25/x
  3. Step 3: Cross multiply
    2,274.75x = 3,139.97 × 1,343.25
  4. Step 4: Simplify right side
    2,274.75x = 4,217,757.99
  5. Step 5: Solve for x
    x = 4,217,757.99/2,274.75
  6. Step 6: Final answer
    x = 1,854.16

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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.