Home / 2,205.76-3,043.98-1,211.02

Finding the Fourth Proportional to 2,205.76, 3,043.98 and 1,211.02

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Solution

The fourth proportional to 2,205.76, 3,043.98 and 1,211.02 is: 1,671.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,205.76 : 3,043.98 = 1,211.02 : x
  2. Step 2: Convert to fraction form
    2,205.76/3,043.98 = 1,211.02/x
  3. Step 3: Cross multiply
    2,205.76x = 3,043.98 × 1,211.02
  4. Step 4: Simplify right side
    2,205.76x = 3,686,320.66
  5. Step 5: Solve for x
    x = 3,686,320.66/2,205.76
  6. Step 6: Final answer
    x = 1,671.22

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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.