Home / 2,190.94-3,022.92-1,246.74

Finding the Fourth Proportional to 2,190.94, 3,022.92 and 1,246.74

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Solution

The fourth proportional to 2,190.94, 3,022.92 and 1,246.74 is: 1,720.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190.94 : 3,022.92 = 1,246.74 : x
  2. Step 2: Convert to fraction form
    2,190.94/3,022.92 = 1,246.74/x
  3. Step 3: Cross multiply
    2,190.94x = 3,022.92 × 1,246.74
  4. Step 4: Simplify right side
    2,190.94x = 3,768,795.28
  5. Step 5: Solve for x
    x = 3,768,795.28/2,190.94
  6. Step 6: Final answer
    x = 1,720.17

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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.