Home / 3,079.38-4,617.45-2,105.76

Finding the Fourth Proportional to 3,079.38, 4,617.45 and 2,105.76

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Solution

The fourth proportional to 3,079.38, 4,617.45 and 2,105.76 is: 3,157.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,079.38 : 4,617.45 = 2,105.76 : x
  2. Step 2: Convert to fraction form
    3,079.38/4,617.45 = 2,105.76/x
  3. Step 3: Cross multiply
    3,079.38x = 4,617.45 × 2,105.76
  4. Step 4: Simplify right side
    3,079.38x = 9,723,241.51
  5. Step 5: Solve for x
    x = 9,723,241.51/3,079.38
  6. Step 6: Final answer
    x = 3,157.53

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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.