Home / 2,447.20-3,666.19-1,213.94

Finding the Fourth Proportional to 2,447.20, 3,666.19 and 1,213.94

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Solution

The fourth proportional to 2,447.20, 3,666.19 and 1,213.94 is: 1,818.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,447.20 : 3,666.19 = 1,213.94 : x
  2. Step 2: Convert to fraction form
    2,447.20/3,666.19 = 1,213.94/x
  3. Step 3: Cross multiply
    2,447.20x = 3,666.19 × 1,213.94
  4. Step 4: Simplify right side
    2,447.20x = 4,450,534.69
  5. Step 5: Solve for x
    x = 4,450,534.69/2,447.20
  6. Step 6: Final answer
    x = 1,818.62

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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.