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Finding the Fourth Proportional to 2,377.62, 3,550.19 and 2,129.22

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Solution

The fourth proportional to 2,377.62, 3,550.19 and 2,129.22 is: 3,179.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,377.62 : 3,550.19 = 2,129.22 : x
  2. Step 2: Convert to fraction form
    2,377.62/3,550.19 = 2,129.22/x
  3. Step 3: Cross multiply
    2,377.62x = 3,550.19 × 2,129.22
  4. Step 4: Simplify right side
    2,377.62x = 7,559,135.55
  5. Step 5: Solve for x
    x = 7,559,135.55/2,377.62
  6. Step 6: Final answer
    x = 3,179.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.