Home / 3,709.25-5,118.69-2,217.50

Finding the Fourth Proportional to 3,709.25, 5,118.69 and 2,217.50

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Solution

The fourth proportional to 3,709.25, 5,118.69 and 2,217.50 is: 3,060.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,709.25 : 5,118.69 = 2,217.50 : x
  2. Step 2: Convert to fraction form
    3,709.25/5,118.69 = 2,217.50/x
  3. Step 3: Cross multiply
    3,709.25x = 5,118.69 × 2,217.50
  4. Step 4: Simplify right side
    3,709.25x = 11,350,695.08
  5. Step 5: Solve for x
    x = 11,350,695.08/3,709.25
  6. Step 6: Final answer
    x = 3,060.11

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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.