Home / 2,292.28-3,161.02-1,961.80

Finding the Fourth Proportional to 2,292.28, 3,161.02 and 1,961.80

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Solution

The fourth proportional to 2,292.28, 3,161.02 and 1,961.80 is: 2,705.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,292.28 : 3,161.02 = 1,961.80 : x
  2. Step 2: Convert to fraction form
    2,292.28/3,161.02 = 1,961.80/x
  3. Step 3: Cross multiply
    2,292.28x = 3,161.02 × 1,961.80
  4. Step 4: Simplify right side
    2,292.28x = 6,201,289.04
  5. Step 5: Solve for x
    x = 6,201,289.04/2,292.28
  6. Step 6: Final answer
    x = 2,705.29

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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.