Home / 3,709.76-5,119.08-2,217.36

Finding the Fourth Proportional to 3,709.76, 5,119.08 and 2,217.36

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Solution

The fourth proportional to 3,709.76, 5,119.08 and 2,217.36 is: 3,059.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,709.76 : 5,119.08 = 2,217.36 : x
  2. Step 2: Convert to fraction form
    3,709.76/5,119.08 = 2,217.36/x
  3. Step 3: Cross multiply
    3,709.76x = 5,119.08 × 2,217.36
  4. Step 4: Simplify right side
    3,709.76x = 11,350,843.23
  5. Step 5: Solve for x
    x = 11,350,843.23/3,709.76
  6. Step 6: Final answer
    x = 3,059.72

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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.