Home / 2,151.75-3,227.63-1,422.75

Finding the Fourth Proportional to 2,151.75, 3,227.63 and 1,422.75

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Solution

The fourth proportional to 2,151.75, 3,227.63 and 1,422.75 is: 2,134.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,151.75 : 3,227.63 = 1,422.75 : x
  2. Step 2: Convert to fraction form
    2,151.75/3,227.63 = 1,422.75/x
  3. Step 3: Cross multiply
    2,151.75x = 3,227.63 × 1,422.75
  4. Step 4: Simplify right side
    2,151.75x = 4,592,110.58
  5. Step 5: Solve for x
    x = 4,592,110.58/2,151.75
  6. Step 6: Final answer
    x = 2,134.13

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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.