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Finding the Fourth Proportional to 2,045.82, 3,068.92 and 658.66

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Solution

The fourth proportional to 2,045.82, 3,068.92 and 658.66 is: 988.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,045.82 : 3,068.92 = 658.66 : x
  2. Step 2: Convert to fraction form
    2,045.82/3,068.92 = 658.66/x
  3. Step 3: Cross multiply
    2,045.82x = 3,068.92 × 658.66
  4. Step 4: Simplify right side
    2,045.82x = 2,021,374.85
  5. Step 5: Solve for x
    x = 2,021,374.85/2,045.82
  6. Step 6: Final answer
    x = 988.05

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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.