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Finding the Fourth Proportional to 3,017.80, 4,526.96 and 826.52

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Solution

The fourth proportional to 3,017.80, 4,526.96 and 826.52 is: 1,239.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,017.80 : 4,526.96 = 826.52 : x
  2. Step 2: Convert to fraction form
    3,017.80/4,526.96 = 826.52/x
  3. Step 3: Cross multiply
    3,017.80x = 4,526.96 × 826.52
  4. Step 4: Simplify right side
    3,017.80x = 3,741,622.98
  5. Step 5: Solve for x
    x = 3,741,622.98/3,017.80
  6. Step 6: Final answer
    x = 1,239.85

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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.