Home / 2,517.15-3,775.70-2,143.47

Finding the Fourth Proportional to 2,517.15, 3,775.70 and 2,143.47

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Solution

The fourth proportional to 2,517.15, 3,775.70 and 2,143.47 is: 3,215.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,517.15 : 3,775.70 = 2,143.47 : x
  2. Step 2: Convert to fraction form
    2,517.15/3,775.70 = 2,143.47/x
  3. Step 3: Cross multiply
    2,517.15x = 3,775.70 × 2,143.47
  4. Step 4: Simplify right side
    2,517.15x = 8,093,099.68
  5. Step 5: Solve for x
    x = 8,093,099.68/2,517.15
  6. Step 6: Final answer
    x = 3,215.18

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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.