Home / 2,200.47-3,036.66-1,205.78

Finding the Fourth Proportional to 2,200.47, 3,036.66 and 1,205.78

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Solution

The fourth proportional to 2,200.47, 3,036.66 and 1,205.78 is: 1,663.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,200.47 : 3,036.66 = 1,205.78 : x
  2. Step 2: Convert to fraction form
    2,200.47/3,036.66 = 1,205.78/x
  3. Step 3: Cross multiply
    2,200.47x = 3,036.66 × 1,205.78
  4. Step 4: Simplify right side
    2,200.47x = 3,661,528.71
  5. Step 5: Solve for x
    x = 3,661,528.71/2,200.47
  6. Step 6: Final answer
    x = 1,663.98

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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.