Home / 2,195.90-3,030.34-1,201.17

Finding the Fourth Proportional to 2,195.90, 3,030.34 and 1,201.17

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Solution

The fourth proportional to 2,195.90, 3,030.34 and 1,201.17 is: 1,657.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,195.90 : 3,030.34 = 1,201.17 : x
  2. Step 2: Convert to fraction form
    2,195.90/3,030.34 = 1,201.17/x
  3. Step 3: Cross multiply
    2,195.90x = 3,030.34 × 1,201.17
  4. Step 4: Simplify right side
    2,195.90x = 3,639,947.49
  5. Step 5: Solve for x
    x = 3,639,947.49/2,195.90
  6. Step 6: Final answer
    x = 1,657.61

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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.