Home / 2,200.60-3,036.81-1,205.87

Finding the Fourth Proportional to 2,200.60, 3,036.81 and 1,205.87

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Solution

The fourth proportional to 2,200.60, 3,036.81 and 1,205.87 is: 1,664.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,200.60 : 3,036.81 = 1,205.87 : x
  2. Step 2: Convert to fraction form
    2,200.60/3,036.81 = 1,205.87/x
  3. Step 3: Cross multiply
    2,200.60x = 3,036.81 × 1,205.87
  4. Step 4: Simplify right side
    2,200.60x = 3,661,998.07
  5. Step 5: Solve for x
    x = 3,661,998.07/2,200.60
  6. Step 6: Final answer
    x = 1,664.09

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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.