Home / 3,709.62-5,118.02-2,217.80

Finding the Fourth Proportional to 3,709.62, 5,118.02 and 2,217.80

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Solution

The fourth proportional to 3,709.62, 5,118.02 and 2,217.80 is: 3,059.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,709.62 : 5,118.02 = 2,217.80 : x
  2. Step 2: Convert to fraction form
    3,709.62/5,118.02 = 2,217.80/x
  3. Step 3: Cross multiply
    3,709.62x = 5,118.02 × 2,217.80
  4. Step 4: Simplify right side
    3,709.62x = 11,350,744.76
  5. Step 5: Solve for x
    x = 11,350,744.76/3,709.62
  6. Step 6: Final answer
    x = 3,059.81

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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.