Home / 2,220.88-3,064.68-1,226.13

Finding the Fourth Proportional to 2,220.88, 3,064.68 and 1,226.13

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Solution

The fourth proportional to 2,220.88, 3,064.68 and 1,226.13 is: 1,691.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,220.88 : 3,064.68 = 1,226.13 : x
  2. Step 2: Convert to fraction form
    2,220.88/3,064.68 = 1,226.13/x
  3. Step 3: Cross multiply
    2,220.88x = 3,064.68 × 1,226.13
  4. Step 4: Simplify right side
    2,220.88x = 3,757,696.09
  5. Step 5: Solve for x
    x = 3,757,696.09/2,220.88
  6. Step 6: Final answer
    x = 1,691.99

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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.