Home / 2,195.88-3,030.30-1,201.15

Finding the Fourth Proportional to 2,195.88, 3,030.30 and 1,201.15

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Solution

The fourth proportional to 2,195.88, 3,030.30 and 1,201.15 is: 1,657.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,195.88 : 3,030.30 = 1,201.15 : x
  2. Step 2: Convert to fraction form
    2,195.88/3,030.30 = 1,201.15/x
  3. Step 3: Cross multiply
    2,195.88x = 3,030.30 × 1,201.15
  4. Step 4: Simplify right side
    2,195.88x = 3,639,844.85
  5. Step 5: Solve for x
    x = 3,639,844.85/2,195.88
  6. Step 6: Final answer
    x = 1,657.58

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1.5x scale

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.