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Finding the Fourth Proportional to 2,882.25, 4,324.10 and 830.25

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Solution

The fourth proportional to 2,882.25, 4,324.10 and 830.25 is: 1,245.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,882.25 : 4,324.10 = 830.25 : x
  2. Step 2: Convert to fraction form
    2,882.25/4,324.10 = 830.25/x
  3. Step 3: Cross multiply
    2,882.25x = 4,324.10 × 830.25
  4. Step 4: Simplify right side
    2,882.25x = 3,590,079.87
  5. Step 5: Solve for x
    x = 3,590,079.87/2,882.25
  6. Step 6: Final answer
    x = 1,245.58

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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.