Home / 2,209.82-3,315.63-1,170.99

Finding the Fourth Proportional to 2,209.82, 3,315.63 and 1,170.99

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Solution

The fourth proportional to 2,209.82, 3,315.63 and 1,170.99 is: 1,756.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,209.82 : 3,315.63 = 1,170.99 : x
  2. Step 2: Convert to fraction form
    2,209.82/3,315.63 = 1,170.99/x
  3. Step 3: Cross multiply
    2,209.82x = 3,315.63 × 1,170.99
  4. Step 4: Simplify right side
    2,209.82x = 3,882,569.57
  5. Step 5: Solve for x
    x = 3,882,569.57/2,209.82
  6. Step 6: Final answer
    x = 1,756.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.