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Finding the Fourth Proportional to 3,077.65, 4,616.49 and 886.39

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Solution

The fourth proportional to 3,077.65, 4,616.49 and 886.39 is: 1,329.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,077.65 : 4,616.49 = 886.39 : x
  2. Step 2: Convert to fraction form
    3,077.65/4,616.49 = 886.39/x
  3. Step 3: Cross multiply
    3,077.65x = 4,616.49 × 886.39
  4. Step 4: Simplify right side
    3,077.65x = 4,092,010.57
  5. Step 5: Solve for x
    x = 4,092,010.57/3,077.65
  6. Step 6: Final answer
    x = 1,329.59

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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.