Home / 2,561.67-3,851.06-2,102.85

Finding the Fourth Proportional to 2,561.67, 3,851.06 and 2,102.85

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Solution

The fourth proportional to 2,561.67, 3,851.06 and 2,102.85 is: 3,161.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,561.67 : 3,851.06 = 2,102.85 : x
  2. Step 2: Convert to fraction form
    2,561.67/3,851.06 = 2,102.85/x
  3. Step 3: Cross multiply
    2,561.67x = 3,851.06 × 2,102.85
  4. Step 4: Simplify right side
    2,561.67x = 8,098,191.01
  5. Step 5: Solve for x
    x = 8,098,191.01/2,561.67
  6. Step 6: Final answer
    x = 3,161.29

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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.