Home / 3,612-4,986.99-2,217.18

Finding the Fourth Proportional to 3,612, 4,986.99 and 2,217.18

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Solution

The fourth proportional to 3,612, 4,986.99 and 2,217.18 is: 3,061.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,612 : 4,986.99 = 2,217.18 : x
  2. Step 2: Convert to fraction form
    3,612/4,986.99 = 2,217.18/x
  3. Step 3: Cross multiply
    3,612x = 4,986.99 × 2,217.18
  4. Step 4: Simplify right side
    3,612x = 11,057,054.49
  5. Step 5: Solve for x
    x = 11,057,054.49/3,612
  6. Step 6: Final answer
    x = 3,061.20

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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.