Home / 3,709.79-5,119.57-2,217.87

Finding the Fourth Proportional to 3,709.79, 5,119.57 and 2,217.87

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Solution

The fourth proportional to 3,709.79, 5,119.57 and 2,217.87 is: 3,060.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,709.79 : 5,119.57 = 2,217.87 : x
  2. Step 2: Convert to fraction form
    3,709.79/5,119.57 = 2,217.87/x
  3. Step 3: Cross multiply
    3,709.79x = 5,119.57 × 2,217.87
  4. Step 4: Simplify right side
    3,709.79x = 11,354,540.72
  5. Step 5: Solve for x
    x = 11,354,540.72/3,709.79
  6. Step 6: Final answer
    x = 3,060.70

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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.