Home / 1,422.24-1,961.52-950.88

Finding the Fourth Proportional to 1,422.24, 1,961.52 and 950.88

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Solution

The fourth proportional to 1,422.24, 1,961.52 and 950.88 is: 1,311.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,422.24 : 1,961.52 = 950.88 : x
  2. Step 2: Convert to fraction form
    1,422.24/1,961.52 = 950.88/x
  3. Step 3: Cross multiply
    1,422.24x = 1,961.52 × 950.88
  4. Step 4: Simplify right side
    1,422.24x = 1,865,170.14
  5. Step 5: Solve for x
    x = 1,865,170.14/1,422.24
  6. Step 6: Final answer
    x = 1,311.43

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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.