Home / 1,966.13-2,712.33-1,219.82

Finding the Fourth Proportional to 1,966.13, 2,712.33 and 1,219.82

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Solution

The fourth proportional to 1,966.13, 2,712.33 and 1,219.82 is: 1,682.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,966.13 : 2,712.33 = 1,219.82 : x
  2. Step 2: Convert to fraction form
    1,966.13/2,712.33 = 1,219.82/x
  3. Step 3: Cross multiply
    1,966.13x = 2,712.33 × 1,219.82
  4. Step 4: Simplify right side
    1,966.13x = 3,308,540.82
  5. Step 5: Solve for x
    x = 3,308,540.82/1,966.13
  6. Step 6: Final answer
    x = 1,682.77

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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.