Home / 2,611.38-3,934.71-2,159.28

Finding the Fourth Proportional to 2,611.38, 3,934.71 and 2,159.28

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Solution

The fourth proportional to 2,611.38, 3,934.71 and 2,159.28 is: 3,253.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,611.38 : 3,934.71 = 2,159.28 : x
  2. Step 2: Convert to fraction form
    2,611.38/3,934.71 = 2,159.28/x
  3. Step 3: Cross multiply
    2,611.38x = 3,934.71 × 2,159.28
  4. Step 4: Simplify right side
    2,611.38x = 8,496,140.61
  5. Step 5: Solve for x
    x = 8,496,140.61/2,611.38
  6. Step 6: Final answer
    x = 3,253.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.