Home / 2,961.28-4,090.76-2,695.28

Finding the Fourth Proportional to 2,961.28, 4,090.76 and 2,695.28

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Solution

The fourth proportional to 2,961.28, 4,090.76 and 2,695.28 is: 3,723.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,961.28 : 4,090.76 = 2,695.28 : x
  2. Step 2: Convert to fraction form
    2,961.28/4,090.76 = 2,695.28/x
  3. Step 3: Cross multiply
    2,961.28x = 4,090.76 × 2,695.28
  4. Step 4: Simplify right side
    2,961.28x = 11,025,743.61
  5. Step 5: Solve for x
    x = 11,025,743.61/2,961.28
  6. Step 6: Final answer
    x = 3,723.30

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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.