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Finding the Fourth Proportional to 2,576.18, 3,864.42 and 844.80

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Solution

The fourth proportional to 2,576.18, 3,864.42 and 844.80 is: 1,267.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,576.18 : 3,864.42 = 844.80 : x
  2. Step 2: Convert to fraction form
    2,576.18/3,864.42 = 844.80/x
  3. Step 3: Cross multiply
    2,576.18x = 3,864.42 × 844.80
  4. Step 4: Simplify right side
    2,576.18x = 3,264,681.32
  5. Step 5: Solve for x
    x = 3,264,681.32/2,576.18
  6. Step 6: Final answer
    x = 1,267.26

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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.