Home / 2,381.55-3,572.33-1,286.43

Finding the Fourth Proportional to 2,381.55, 3,572.33 and 1,286.43

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Solution

The fourth proportional to 2,381.55, 3,572.33 and 1,286.43 is: 1,929.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,381.55 : 3,572.33 = 1,286.43 : x
  2. Step 2: Convert to fraction form
    2,381.55/3,572.33 = 1,286.43/x
  3. Step 3: Cross multiply
    2,381.55x = 3,572.33 × 1,286.43
  4. Step 4: Simplify right side
    2,381.55x = 4,595,552.48
  5. Step 5: Solve for x
    x = 4,595,552.48/2,381.55
  6. Step 6: Final answer
    x = 1,929.65

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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.