Home / 2,220.87-3,064.79-1,226.12

Finding the Fourth Proportional to 2,220.87, 3,064.79 and 1,226.12

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Solution

The fourth proportional to 2,220.87, 3,064.79 and 1,226.12 is: 1,692.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,220.87 : 3,064.79 = 1,226.12 : x
  2. Step 2: Convert to fraction form
    2,220.87/3,064.79 = 1,226.12/x
  3. Step 3: Cross multiply
    2,220.87x = 3,064.79 × 1,226.12
  4. Step 4: Simplify right side
    2,220.87x = 3,757,811.04
  5. Step 5: Solve for x
    x = 3,757,811.04/2,220.87
  6. Step 6: Final answer
    x = 1,692.04

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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.