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Finding the Fourth Proportional to 3,149.99, 4,697.53 and 2,761.79

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Solution

The fourth proportional to 3,149.99, 4,697.53 and 2,761.79 is: 4,118.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,149.99 : 4,697.53 = 2,761.79 : x
  2. Step 2: Convert to fraction form
    3,149.99/4,697.53 = 2,761.79/x
  3. Step 3: Cross multiply
    3,149.99x = 4,697.53 × 2,761.79
  4. Step 4: Simplify right side
    3,149.99x = 12,973,591.38
  5. Step 5: Solve for x
    x = 12,973,591.38/3,149.99
  6. Step 6: Final answer
    x = 4,118.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.