Home / 2,104.18-3,156.67-717.75

Finding the Fourth Proportional to 2,104.18, 3,156.67 and 717.75

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Solution

The fourth proportional to 2,104.18, 3,156.67 and 717.75 is: 1,076.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,104.18 : 3,156.67 = 717.75 : x
  2. Step 2: Convert to fraction form
    2,104.18/3,156.67 = 717.75/x
  3. Step 3: Cross multiply
    2,104.18x = 3,156.67 × 717.75
  4. Step 4: Simplify right side
    2,104.18x = 2,265,699.89
  5. Step 5: Solve for x
    x = 2,265,699.89/2,104.18
  6. Step 6: Final answer
    x = 1,076.76

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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.