Home / 2,016.90-3,021.10-922.19

Finding the Fourth Proportional to 2,016.90, 3,021.10 and 922.19

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Solution

The fourth proportional to 2,016.90, 3,021.10 and 922.19 is: 1,381.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,016.90 : 3,021.10 = 922.19 : x
  2. Step 2: Convert to fraction form
    2,016.90/3,021.10 = 922.19/x
  3. Step 3: Cross multiply
    2,016.90x = 3,021.10 × 922.19
  4. Step 4: Simplify right side
    2,016.90x = 2,786,010.80
  5. Step 5: Solve for x
    x = 2,786,010.80/2,016.90
  6. Step 6: Final answer
    x = 1,381.33

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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.