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Finding the Fourth Proportional to 2,674, 4,010.52 and 1,212.80

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Solution

The fourth proportional to 2,674, 4,010.52 and 1,212.80 is: 1,818.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,674 : 4,010.52 = 1,212.80 : x
  2. Step 2: Convert to fraction form
    2,674/4,010.52 = 1,212.80/x
  3. Step 3: Cross multiply
    2,674x = 4,010.52 × 1,212.80
  4. Step 4: Simplify right side
    2,674x = 4,863,958.66
  5. Step 5: Solve for x
    x = 4,863,958.66/2,674
  6. Step 6: Final answer
    x = 1,818.98

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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.