Home / 3,134.62-4,322.28-2,140.42

Finding the Fourth Proportional to 3,134.62, 4,322.28 and 2,140.42

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Solution

The fourth proportional to 3,134.62, 4,322.28 and 2,140.42 is: 2,951.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,134.62 : 4,322.28 = 2,140.42 : x
  2. Step 2: Convert to fraction form
    3,134.62/4,322.28 = 2,140.42/x
  3. Step 3: Cross multiply
    3,134.62x = 4,322.28 × 2,140.42
  4. Step 4: Simplify right side
    3,134.62x = 9,251,494.56
  5. Step 5: Solve for x
    x = 9,251,494.56/3,134.62
  6. Step 6: Final answer
    x = 2,951.39

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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.