Home / 2,190.24-3,022.08-1,258.56

Finding the Fourth Proportional to 2,190.24, 3,022.08 and 1,258.56

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Solution

The fourth proportional to 2,190.24, 3,022.08 and 1,258.56 is: 1,736.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190.24 : 3,022.08 = 1,258.56 : x
  2. Step 2: Convert to fraction form
    2,190.24/3,022.08 = 1,258.56/x
  3. Step 3: Cross multiply
    2,190.24x = 3,022.08 × 1,258.56
  4. Step 4: Simplify right side
    2,190.24x = 3,803,469.00
  5. Step 5: Solve for x
    x = 3,803,469.00/2,190.24
  6. Step 6: Final answer
    x = 1,736.55

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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.