Home / 1,961.11-2,943.02-1,268.11

Finding the Fourth Proportional to 1,961.11, 2,943.02 and 1,268.11

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Solution

The fourth proportional to 1,961.11, 2,943.02 and 1,268.11 is: 1,903.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,961.11 : 2,943.02 = 1,268.11 : x
  2. Step 2: Convert to fraction form
    1,961.11/2,943.02 = 1,268.11/x
  3. Step 3: Cross multiply
    1,961.11x = 2,943.02 × 1,268.11
  4. Step 4: Simplify right side
    1,961.11x = 3,732,056.25
  5. Step 5: Solve for x
    x = 3,732,056.25/1,961.11
  6. Step 6: Final answer
    x = 1,903.03

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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.