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Finding the Fourth Proportional to 2,576.24, 3,865.44 and 845.04

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Solution

The fourth proportional to 2,576.24, 3,865.44 and 845.04 is: 1,267.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,576.24 : 3,865.44 = 845.04 : x
  2. Step 2: Convert to fraction form
    2,576.24/3,865.44 = 845.04/x
  3. Step 3: Cross multiply
    2,576.24x = 3,865.44 × 845.04
  4. Step 4: Simplify right side
    2,576.24x = 3,266,451.42
  5. Step 5: Solve for x
    x = 3,266,451.42/2,576.24
  6. Step 6: Final answer
    x = 1,267.91

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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.