Home / 2,195.90-3,030.25-1,201.16

Finding the Fourth Proportional to 2,195.90, 3,030.25 and 1,201.16

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Solution

The fourth proportional to 2,195.90, 3,030.25 and 1,201.16 is: 1,657.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,195.90 : 3,030.25 = 1,201.16 : x
  2. Step 2: Convert to fraction form
    2,195.90/3,030.25 = 1,201.16/x
  3. Step 3: Cross multiply
    2,195.90x = 3,030.25 × 1,201.16
  4. Step 4: Simplify right side
    2,195.90x = 3,639,815.09
  5. Step 5: Solve for x
    x = 3,639,815.09/2,195.90
  6. Step 6: Final answer
    x = 1,657.55

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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.