Home / 3,850.72-5,315.96-2,669.74

Finding the Fourth Proportional to 3,850.72, 5,315.96 and 2,669.74

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Solution

The fourth proportional to 3,850.72, 5,315.96 and 2,669.74 is: 3,685.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,850.72 : 5,315.96 = 2,669.74 : x
  2. Step 2: Convert to fraction form
    3,850.72/5,315.96 = 2,669.74/x
  3. Step 3: Cross multiply
    3,850.72x = 5,315.96 × 2,669.74
  4. Step 4: Simplify right side
    3,850.72x = 14,192,231.05
  5. Step 5: Solve for x
    x = 14,192,231.05/3,850.72
  6. Step 6: Final answer
    x = 3,685.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.