Home / 2,221.17-3,065.27-1,226.46

Finding the Fourth Proportional to 2,221.17, 3,065.27 and 1,226.46

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Solution

The fourth proportional to 2,221.17, 3,065.27 and 1,226.46 is: 1,692.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,221.17 : 3,065.27 = 1,226.46 : x
  2. Step 2: Convert to fraction form
    2,221.17/3,065.27 = 1,226.46/x
  3. Step 3: Cross multiply
    2,221.17x = 3,065.27 × 1,226.46
  4. Step 4: Simplify right side
    2,221.17x = 3,759,431.04
  5. Step 5: Solve for x
    x = 3,759,431.04/2,221.17
  6. Step 6: Final answer
    x = 1,692.55

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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.