Home / 2,383.07-3,288.80-1,320.88

Finding the Fourth Proportional to 2,383.07, 3,288.80 and 1,320.88

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Solution

The fourth proportional to 2,383.07, 3,288.80 and 1,320.88 is: 1,822.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,383.07 : 3,288.80 = 1,320.88 : x
  2. Step 2: Convert to fraction form
    2,383.07/3,288.80 = 1,320.88/x
  3. Step 3: Cross multiply
    2,383.07x = 3,288.80 × 1,320.88
  4. Step 4: Simplify right side
    2,383.07x = 4,344,110.14
  5. Step 5: Solve for x
    x = 4,344,110.14/2,383.07
  6. Step 6: Final answer
    x = 1,822.90

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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.