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Finding the Fourth Proportional to 2,149.14, 3,223.53 and 994.89

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Solution

The fourth proportional to 2,149.14, 3,223.53 and 994.89 is: 1,492.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,149.14 : 3,223.53 = 994.89 : x
  2. Step 2: Convert to fraction form
    2,149.14/3,223.53 = 994.89/x
  3. Step 3: Cross multiply
    2,149.14x = 3,223.53 × 994.89
  4. Step 4: Simplify right side
    2,149.14x = 3,207,057.76
  5. Step 5: Solve for x
    x = 3,207,057.76/2,149.14
  6. Step 6: Final answer
    x = 1,492.25

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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.