Home / 2,447.76-3,665.70-1,149.60

Finding the Fourth Proportional to 2,447.76, 3,665.70 and 1,149.60

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Solution

The fourth proportional to 2,447.76, 3,665.70 and 1,149.60 is: 1,721.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,447.76 : 3,665.70 = 1,149.60 : x
  2. Step 2: Convert to fraction form
    2,447.76/3,665.70 = 1,149.60/x
  3. Step 3: Cross multiply
    2,447.76x = 3,665.70 × 1,149.60
  4. Step 4: Simplify right side
    2,447.76x = 4,214,088.72
  5. Step 5: Solve for x
    x = 4,214,088.72/2,447.76
  6. Step 6: Final answer
    x = 1,721.61

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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.