Home / 2,812.05-4,217.70-732.21

Finding the Fourth Proportional to 2,812.05, 4,217.70 and 732.21

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Solution

The fourth proportional to 2,812.05, 4,217.70 and 732.21 is: 1,098.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,812.05 : 4,217.70 = 732.21 : x
  2. Step 2: Convert to fraction form
    2,812.05/4,217.70 = 732.21/x
  3. Step 3: Cross multiply
    2,812.05x = 4,217.70 × 732.21
  4. Step 4: Simplify right side
    2,812.05x = 3,088,229.05
  5. Step 5: Solve for x
    x = 3,088,229.05/2,812.05
  6. Step 6: Final answer
    x = 1,098.21

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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.