Home / 2,167.14-3,251.51-1,127.86

Finding the Fourth Proportional to 2,167.14, 3,251.51 and 1,127.86

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Solution

The fourth proportional to 2,167.14, 3,251.51 and 1,127.86 is: 1,692.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,167.14 : 3,251.51 = 1,127.86 : x
  2. Step 2: Convert to fraction form
    2,167.14/3,251.51 = 1,127.86/x
  3. Step 3: Cross multiply
    2,167.14x = 3,251.51 × 1,127.86
  4. Step 4: Simplify right side
    2,167.14x = 3,667,248.07
  5. Step 5: Solve for x
    x = 3,667,248.07/2,167.14
  6. Step 6: Final answer
    x = 1,692.21

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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.