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Finding the Fourth Proportional to 2,791.76, 4,182.78 and 2,062.76

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Solution

The fourth proportional to 2,791.76, 4,182.78 and 2,062.76 is: 3,090.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,791.76 : 4,182.78 = 2,062.76 : x
  2. Step 2: Convert to fraction form
    2,791.76/4,182.78 = 2,062.76/x
  3. Step 3: Cross multiply
    2,791.76x = 4,182.78 × 2,062.76
  4. Step 4: Simplify right side
    2,791.76x = 8,628,071.27
  5. Step 5: Solve for x
    x = 8,628,071.27/2,791.76
  6. Step 6: Final answer
    x = 3,090.55

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1.5x scale

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.