Home / 2,259.67-3,391.53-1,891.78

Finding the Fourth Proportional to 2,259.67, 3,391.53 and 1,891.78

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Solution

The fourth proportional to 2,259.67, 3,391.53 and 1,891.78 is: 2,839.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,259.67 : 3,391.53 = 1,891.78 : x
  2. Step 2: Convert to fraction form
    2,259.67/3,391.53 = 1,891.78/x
  3. Step 3: Cross multiply
    2,259.67x = 3,391.53 × 1,891.78
  4. Step 4: Simplify right side
    2,259.67x = 6,416,002.21
  5. Step 5: Solve for x
    x = 6,416,002.21/2,259.67
  6. Step 6: Final answer
    x = 2,839.36

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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.