Home / 2,205.04-3,043.36-1,320.64

Finding the Fourth Proportional to 2,205.04, 3,043.36 and 1,320.64

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Solution

The fourth proportional to 2,205.04, 3,043.36 and 1,320.64 is: 1,822.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,205.04 : 3,043.36 = 1,320.64 : x
  2. Step 2: Convert to fraction form
    2,205.04/3,043.36 = 1,320.64/x
  3. Step 3: Cross multiply
    2,205.04x = 3,043.36 × 1,320.64
  4. Step 4: Simplify right side
    2,205.04x = 4,019,182.95
  5. Step 5: Solve for x
    x = 4,019,182.95/2,205.04
  6. Step 6: Final answer
    x = 1,822.73

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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.