Home / 2,206.31-3,043.64-1,321.45

Finding the Fourth Proportional to 2,206.31, 3,043.64 and 1,321.45

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Solution

The fourth proportional to 2,206.31, 3,043.64 and 1,321.45 is: 1,822.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,206.31 : 3,043.64 = 1,321.45 : x
  2. Step 2: Convert to fraction form
    2,206.31/3,043.64 = 1,321.45/x
  3. Step 3: Cross multiply
    2,206.31x = 3,043.64 × 1,321.45
  4. Step 4: Simplify right side
    2,206.31x = 4,022,013.77
  5. Step 5: Solve for x
    x = 4,022,013.77/2,206.31
  6. Step 6: Final answer
    x = 1,822.96

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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.