Home / 2,812.06-4,213.10-2,645.38

Finding the Fourth Proportional to 2,812.06, 4,213.10 and 2,645.38

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Solution

The fourth proportional to 2,812.06, 4,213.10 and 2,645.38 is: 3,963.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,812.06 : 4,213.10 = 2,645.38 : x
  2. Step 2: Convert to fraction form
    2,812.06/4,213.10 = 2,645.38/x
  3. Step 3: Cross multiply
    2,812.06x = 4,213.10 × 2,645.38
  4. Step 4: Simplify right side
    2,812.06x = 11,145,250.48
  5. Step 5: Solve for x
    x = 11,145,250.48/2,812.06
  6. Step 6: Final answer
    x = 3,963.38

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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.