Home / 3,211.47-4,428.68-2,579.98

Finding the Fourth Proportional to 3,211.47, 4,428.68 and 2,579.98

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Solution

The fourth proportional to 3,211.47, 4,428.68 and 2,579.98 is: 3,557.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,211.47 : 4,428.68 = 2,579.98 : x
  2. Step 2: Convert to fraction form
    3,211.47/4,428.68 = 2,579.98/x
  3. Step 3: Cross multiply
    3,211.47x = 4,428.68 × 2,579.98
  4. Step 4: Simplify right side
    3,211.47x = 11,425,877.70
  5. Step 5: Solve for x
    x = 11,425,877.70/3,211.47
  6. Step 6: Final answer
    x = 3,557.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.