Home / 2,045.10-3,066.90-658.80

Finding the Fourth Proportional to 2,045.10, 3,066.90 and 658.80

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Solution

The fourth proportional to 2,045.10, 3,066.90 and 658.80 is: 987.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,045.10 : 3,066.90 = 658.80 : x
  2. Step 2: Convert to fraction form
    2,045.10/3,066.90 = 658.80/x
  3. Step 3: Cross multiply
    2,045.10x = 3,066.90 × 658.80
  4. Step 4: Simplify right side
    2,045.10x = 2,020,473.72
  5. Step 5: Solve for x
    x = 2,020,473.72/2,045.10
  6. Step 6: Final answer
    x = 987.96

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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.