Home / 1,206.26-1,799.22-1,100.15

Finding the Fourth Proportional to 1,206.26, 1,799.22 and 1,100.15

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Solution

The fourth proportional to 1,206.26, 1,799.22 and 1,100.15 is: 1,640.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,206.26 : 1,799.22 = 1,100.15 : x
  2. Step 2: Convert to fraction form
    1,206.26/1,799.22 = 1,100.15/x
  3. Step 3: Cross multiply
    1,206.26x = 1,799.22 × 1,100.15
  4. Step 4: Simplify right side
    1,206.26x = 1,979,416.38
  5. Step 5: Solve for x
    x = 1,979,416.38/1,206.26
  6. Step 6: Final answer
    x = 1,640.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.