Home / 3,709.99-5,119.66-2,217.57

Finding the Fourth Proportional to 3,709.99, 5,119.66 and 2,217.57

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Solution

The fourth proportional to 3,709.99, 5,119.66 and 2,217.57 is: 3,060.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,709.99 : 5,119.66 = 2,217.57 : x
  2. Step 2: Convert to fraction form
    3,709.99/5,119.66 = 2,217.57/x
  3. Step 3: Cross multiply
    3,709.99x = 5,119.66 × 2,217.57
  4. Step 4: Simplify right side
    3,709.99x = 11,353,204.43
  5. Step 5: Solve for x
    x = 11,353,204.43/3,709.99
  6. Step 6: Final answer
    x = 3,060.17

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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.