Home / 2,200.64-3,036.78-1,205.87

Finding the Fourth Proportional to 2,200.64, 3,036.78 and 1,205.87

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Solution

The fourth proportional to 2,200.64, 3,036.78 and 1,205.87 is: 1,664.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,200.64 : 3,036.78 = 1,205.87 : x
  2. Step 2: Convert to fraction form
    2,200.64/3,036.78 = 1,205.87/x
  3. Step 3: Cross multiply
    2,200.64x = 3,036.78 × 1,205.87
  4. Step 4: Simplify right side
    2,200.64x = 3,661,946.71
  5. Step 5: Solve for x
    x = 3,661,946.71/2,200.64
  6. Step 6: Final answer
    x = 1,664.04

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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.