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Finding the Fourth Proportional to 2,011.98, 3,017.97 and 826.59

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Solution

The fourth proportional to 2,011.98, 3,017.97 and 826.59 is: 1,239.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,011.98 : 3,017.97 = 826.59 : x
  2. Step 2: Convert to fraction form
    2,011.98/3,017.97 = 826.59/x
  3. Step 3: Cross multiply
    2,011.98x = 3,017.97 × 826.59
  4. Step 4: Simplify right side
    2,011.98x = 2,494,623.82
  5. Step 5: Solve for x
    x = 2,494,623.82/2,011.98
  6. Step 6: Final answer
    x = 1,239.89

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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.