Home / 2,220.84-3,321.72-1,294.08

Finding the Fourth Proportional to 2,220.84, 3,321.72 and 1,294.08

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Solution

The fourth proportional to 2,220.84, 3,321.72 and 1,294.08 is: 1,935.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,220.84 : 3,321.72 = 1,294.08 : x
  2. Step 2: Convert to fraction form
    2,220.84/3,321.72 = 1,294.08/x
  3. Step 3: Cross multiply
    2,220.84x = 3,321.72 × 1,294.08
  4. Step 4: Simplify right side
    2,220.84x = 4,298,571.42
  5. Step 5: Solve for x
    x = 4,298,571.42/2,220.84
  6. Step 6: Final answer
    x = 1,935.56

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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.