Home / 2,867.28-3,958.34-2,227.79

Finding the Fourth Proportional to 2,867.28, 3,958.34 and 2,227.79

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Solution

The fourth proportional to 2,867.28, 3,958.34 and 2,227.79 is: 3,075.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,867.28 : 3,958.34 = 2,227.79 : x
  2. Step 2: Convert to fraction form
    2,867.28/3,958.34 = 2,227.79/x
  3. Step 3: Cross multiply
    2,867.28x = 3,958.34 × 2,227.79
  4. Step 4: Simplify right side
    2,867.28x = 8,818,349.03
  5. Step 5: Solve for x
    x = 8,818,349.03/2,867.28
  6. Step 6: Final answer
    x = 3,075.51

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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.