Home / 2,190.11-3,022.92-1,351.53

Finding the Fourth Proportional to 2,190.11, 3,022.92 and 1,351.53

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Solution

The fourth proportional to 2,190.11, 3,022.92 and 1,351.53 is: 1,865.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190.11 : 3,022.92 = 1,351.53 : x
  2. Step 2: Convert to fraction form
    2,190.11/3,022.92 = 1,351.53/x
  3. Step 3: Cross multiply
    2,190.11x = 3,022.92 × 1,351.53
  4. Step 4: Simplify right side
    2,190.11x = 4,085,567.07
  5. Step 5: Solve for x
    x = 4,085,567.07/2,190.11
  6. Step 6: Final answer
    x = 1,865.47

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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.