Home / 3,391.25-4,680.20-1,956.06

Finding the Fourth Proportional to 3,391.25, 4,680.20 and 1,956.06

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Solution

The fourth proportional to 3,391.25, 4,680.20 and 1,956.06 is: 2,699.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,391.25 : 4,680.20 = 1,956.06 : x
  2. Step 2: Convert to fraction form
    3,391.25/4,680.20 = 1,956.06/x
  3. Step 3: Cross multiply
    3,391.25x = 4,680.20 × 1,956.06
  4. Step 4: Simplify right side
    3,391.25x = 9,154,756.90
  5. Step 5: Solve for x
    x = 9,154,756.90/3,391.25
  6. Step 6: Final answer
    x = 2,699.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.