Home / 2,579.70-3,871.08-1,098.85

Finding the Fourth Proportional to 2,579.70, 3,871.08 and 1,098.85

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Solution

The fourth proportional to 2,579.70, 3,871.08 and 1,098.85 is: 1,648.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,579.70 : 3,871.08 = 1,098.85 : x
  2. Step 2: Convert to fraction form
    2,579.70/3,871.08 = 1,098.85/x
  3. Step 3: Cross multiply
    2,579.70x = 3,871.08 × 1,098.85
  4. Step 4: Simplify right side
    2,579.70x = 4,253,736.26
  5. Step 5: Solve for x
    x = 4,253,736.26/2,579.70
  6. Step 6: Final answer
    x = 1,648.93

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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.