Home / 2,679.61-4,025.59-2,568.89

Finding the Fourth Proportional to 2,679.61, 4,025.59 and 2,568.89

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Solution

The fourth proportional to 2,679.61, 4,025.59 and 2,568.89 is: 3,859.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,679.61 : 4,025.59 = 2,568.89 : x
  2. Step 2: Convert to fraction form
    2,679.61/4,025.59 = 2,568.89/x
  3. Step 3: Cross multiply
    2,679.61x = 4,025.59 × 2,568.89
  4. Step 4: Simplify right side
    2,679.61x = 10,341,301.54
  5. Step 5: Solve for x
    x = 10,341,301.54/2,679.61
  6. Step 6: Final answer
    x = 3,859.26

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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.