Home / 1,961.86-2,943.80-1,304.19

Finding the Fourth Proportional to 1,961.86, 2,943.80 and 1,304.19

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Solution

The fourth proportional to 1,961.86, 2,943.80 and 1,304.19 is: 1,956.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,961.86 : 2,943.80 = 1,304.19 : x
  2. Step 2: Convert to fraction form
    1,961.86/2,943.80 = 1,304.19/x
  3. Step 3: Cross multiply
    1,961.86x = 2,943.80 × 1,304.19
  4. Step 4: Simplify right side
    1,961.86x = 3,839,272.89
  5. Step 5: Solve for x
    x = 3,839,272.89/1,961.86
  6. Step 6: Final answer
    x = 1,956.96

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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.