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Finding the Fourth Proportional to 2,576.12, 3,864.58 and 844.12

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Solution

The fourth proportional to 2,576.12, 3,864.58 and 844.12 is: 1,266.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,576.12 : 3,864.58 = 844.12 : x
  2. Step 2: Convert to fraction form
    2,576.12/3,864.58 = 844.12/x
  3. Step 3: Cross multiply
    2,576.12x = 3,864.58 × 844.12
  4. Step 4: Simplify right side
    2,576.12x = 3,262,169.27
  5. Step 5: Solve for x
    x = 3,262,169.27/2,576.12
  6. Step 6: Final answer
    x = 1,266.31

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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.