Home / 2,217.82-3,328.79-1,122.96

Finding the Fourth Proportional to 2,217.82, 3,328.79 and 1,122.96

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Solution

The fourth proportional to 2,217.82, 3,328.79 and 1,122.96 is: 1,685.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,217.82 : 3,328.79 = 1,122.96 : x
  2. Step 2: Convert to fraction form
    2,217.82/3,328.79 = 1,122.96/x
  3. Step 3: Cross multiply
    2,217.82x = 3,328.79 × 1,122.96
  4. Step 4: Simplify right side
    2,217.82x = 3,738,075.76
  5. Step 5: Solve for x
    x = 3,738,075.76/2,217.82
  6. Step 6: Final answer
    x = 1,685.48

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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.