Home / 2,731.18-4,096.78-1,170.18

Finding the Fourth Proportional to 2,731.18, 4,096.78 and 1,170.18

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Solution

The fourth proportional to 2,731.18, 4,096.78 and 1,170.18 is: 1,755.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,731.18 : 4,096.78 = 1,170.18 : x
  2. Step 2: Convert to fraction form
    2,731.18/4,096.78 = 1,170.18/x
  3. Step 3: Cross multiply
    2,731.18x = 4,096.78 × 1,170.18
  4. Step 4: Simplify right side
    2,731.18x = 4,793,970.02
  5. Step 5: Solve for x
    x = 4,793,970.02/2,731.18
  6. Step 6: Final answer
    x = 1,755.27

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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.