Home / 2,707.78-4,062.35-1,247.96

Finding the Fourth Proportional to 2,707.78, 4,062.35 and 1,247.96

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Solution

The fourth proportional to 2,707.78, 4,062.35 and 1,247.96 is: 1,872.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,707.78 : 4,062.35 = 1,247.96 : x
  2. Step 2: Convert to fraction form
    2,707.78/4,062.35 = 1,247.96/x
  3. Step 3: Cross multiply
    2,707.78x = 4,062.35 × 1,247.96
  4. Step 4: Simplify right side
    2,707.78x = 5,069,640.73
  5. Step 5: Solve for x
    x = 5,069,640.73/2,707.78
  6. Step 6: Final answer
    x = 1,872.25

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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.