Home / 1,955.20-2,697.92-1,168.96

Finding the Fourth Proportional to 1,955.20, 2,697.92 and 1,168.96

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Solution

The fourth proportional to 1,955.20, 2,697.92 and 1,168.96 is: 1,613.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,955.20 : 2,697.92 = 1,168.96 : x
  2. Step 2: Convert to fraction form
    1,955.20/2,697.92 = 1,168.96/x
  3. Step 3: Cross multiply
    1,955.20x = 2,697.92 × 1,168.96
  4. Step 4: Simplify right side
    1,955.20x = 3,153,760.56
  5. Step 5: Solve for x
    x = 3,153,760.56/1,955.20
  6. Step 6: Final answer
    x = 1,613.01

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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.