Home / 2,220.16-3,061.84-1,433.38

Finding the Fourth Proportional to 2,220.16, 3,061.84 and 1,433.38

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Solution

The fourth proportional to 2,220.16, 3,061.84 and 1,433.38 is: 1,976.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,220.16 : 3,061.84 = 1,433.38 : x
  2. Step 2: Convert to fraction form
    2,220.16/3,061.84 = 1,433.38/x
  3. Step 3: Cross multiply
    2,220.16x = 3,061.84 × 1,433.38
  4. Step 4: Simplify right side
    2,220.16x = 4,388,757.74
  5. Step 5: Solve for x
    x = 4,388,757.74/2,220.16
  6. Step 6: Final answer
    x = 1,976.78

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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.