Home / 5,721-8,581.50-1,825.71

Finding the Fourth Proportional to 5,721, 8,581.50 and 1,825.71

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Solution

The fourth proportional to 5,721, 8,581.50 and 1,825.71 is: 2,738.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,721 : 8,581.50 = 1,825.71 : x
  2. Step 2: Convert to fraction form
    5,721/8,581.50 = 1,825.71/x
  3. Step 3: Cross multiply
    5,721x = 8,581.50 × 1,825.71
  4. Step 4: Simplify right side
    5,721x = 15,667,330.37
  5. Step 5: Solve for x
    x = 15,667,330.37/5,721
  6. Step 6: Final answer
    x = 2,738.57

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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.