Home / 2,261.28-3,392.45-1,028.88

Finding the Fourth Proportional to 2,261.28, 3,392.45 and 1,028.88

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Solution

The fourth proportional to 2,261.28, 3,392.45 and 1,028.88 is: 1,543.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,261.28 : 3,392.45 = 1,028.88 : x
  2. Step 2: Convert to fraction form
    2,261.28/3,392.45 = 1,028.88/x
  3. Step 3: Cross multiply
    2,261.28x = 3,392.45 × 1,028.88
  4. Step 4: Simplify right side
    2,261.28x = 3,490,418.81
  5. Step 5: Solve for x
    x = 3,490,418.81/2,261.28
  6. Step 6: Final answer
    x = 1,543.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.