Home / 2,980.89-4,471.38-2,545.29

Finding the Fourth Proportional to 2,980.89, 4,471.38 and 2,545.29

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Solution

The fourth proportional to 2,980.89, 4,471.38 and 2,545.29 is: 3,817.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,980.89 : 4,471.38 = 2,545.29 : x
  2. Step 2: Convert to fraction form
    2,980.89/4,471.38 = 2,545.29/x
  3. Step 3: Cross multiply
    2,980.89x = 4,471.38 × 2,545.29
  4. Step 4: Simplify right side
    2,980.89x = 11,380,958.80
  5. Step 5: Solve for x
    x = 11,380,958.80/2,980.89
  6. Step 6: Final answer
    x = 3,817.97

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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.