Home / 2,717.15-4,076.17-842.60

Finding the Fourth Proportional to 2,717.15, 4,076.17 and 842.60

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Solution

The fourth proportional to 2,717.15, 4,076.17 and 842.60 is: 1,264.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,717.15 : 4,076.17 = 842.60 : x
  2. Step 2: Convert to fraction form
    2,717.15/4,076.17 = 842.60/x
  3. Step 3: Cross multiply
    2,717.15x = 4,076.17 × 842.60
  4. Step 4: Simplify right side
    2,717.15x = 3,434,580.84
  5. Step 5: Solve for x
    x = 3,434,580.84/2,717.15
  6. Step 6: Final answer
    x = 1,264.04

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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.