Home / 2,179.13-3,009.36-1,383.95

Finding the Fourth Proportional to 2,179.13, 3,009.36 and 1,383.95

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Solution

The fourth proportional to 2,179.13, 3,009.36 and 1,383.95 is: 1,911.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,179.13 : 3,009.36 = 1,383.95 : x
  2. Step 2: Convert to fraction form
    2,179.13/3,009.36 = 1,383.95/x
  3. Step 3: Cross multiply
    2,179.13x = 3,009.36 × 1,383.95
  4. Step 4: Simplify right side
    2,179.13x = 4,164,796.85
  5. Step 5: Solve for x
    x = 4,164,796.85/2,179.13
  6. Step 6: Final answer
    x = 1,911.22

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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.