Home / 5,042.78-7,568.76-2,579.30

Finding the Fourth Proportional to 5,042.78, 7,568.76 and 2,579.30

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Solution

The fourth proportional to 5,042.78, 7,568.76 and 2,579.30 is: 3,871.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,042.78 : 7,568.76 = 2,579.30 : x
  2. Step 2: Convert to fraction form
    5,042.78/7,568.76 = 2,579.30/x
  3. Step 3: Cross multiply
    5,042.78x = 7,568.76 × 2,579.30
  4. Step 4: Simplify right side
    5,042.78x = 19,522,102.67
  5. Step 5: Solve for x
    x = 19,522,102.67/5,042.78
  6. Step 6: Final answer
    x = 3,871.30

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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.