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Finding the Fourth Proportional to 3,017.87, 4,526.79 and 826.59

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Solution

The fourth proportional to 3,017.87, 4,526.79 and 826.59 is: 1,239.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,017.87 : 4,526.79 = 826.59 : x
  2. Step 2: Convert to fraction form
    3,017.87/4,526.79 = 826.59/x
  3. Step 3: Cross multiply
    3,017.87x = 4,526.79 × 826.59
  4. Step 4: Simplify right side
    3,017.87x = 3,741,799.35
  5. Step 5: Solve for x
    x = 3,741,799.35/3,017.87
  6. Step 6: Final answer
    x = 1,239.88

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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.