Home / 2,658.17-3,982.70-1,876.79

Finding the Fourth Proportional to 2,658.17, 3,982.70 and 1,876.79

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Solution

The fourth proportional to 2,658.17, 3,982.70 and 1,876.79 is: 2,811.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,658.17 : 3,982.70 = 1,876.79 : x
  2. Step 2: Convert to fraction form
    2,658.17/3,982.70 = 1,876.79/x
  3. Step 3: Cross multiply
    2,658.17x = 3,982.70 × 1,876.79
  4. Step 4: Simplify right side
    2,658.17x = 7,474,706.18
  5. Step 5: Solve for x
    x = 7,474,706.18/2,658.17
  6. Step 6: Final answer
    x = 2,811.97

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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.