Home / 2,195.91-3,030.03-1,201.05

Finding the Fourth Proportional to 2,195.91, 3,030.03 and 1,201.05

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Solution

The fourth proportional to 2,195.91, 3,030.03 and 1,201.05 is: 1,657.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,195.91 : 3,030.03 = 1,201.05 : x
  2. Step 2: Convert to fraction form
    2,195.91/3,030.03 = 1,201.05/x
  3. Step 3: Cross multiply
    2,195.91x = 3,030.03 × 1,201.05
  4. Step 4: Simplify right side
    2,195.91x = 3,639,217.53
  5. Step 5: Solve for x
    x = 3,639,217.53/2,195.91
  6. Step 6: Final answer
    x = 1,657.27

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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.