Home / 3,105.12-4,286.18-2,057.52

Finding the Fourth Proportional to 3,105.12, 4,286.18 and 2,057.52

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Solution

The fourth proportional to 3,105.12, 4,286.18 and 2,057.52 is: 2,840.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,105.12 : 4,286.18 = 2,057.52 : x
  2. Step 2: Convert to fraction form
    3,105.12/4,286.18 = 2,057.52/x
  3. Step 3: Cross multiply
    3,105.12x = 4,286.18 × 2,057.52
  4. Step 4: Simplify right side
    3,105.12x = 8,818,901.07
  5. Step 5: Solve for x
    x = 8,818,901.07/3,105.12
  6. Step 6: Final answer
    x = 2,840.12

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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.