Home / 2,190.06-3,022.29-1,258.50

Finding the Fourth Proportional to 2,190.06, 3,022.29 and 1,258.50

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Solution

The fourth proportional to 2,190.06, 3,022.29 and 1,258.50 is: 1,736.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190.06 : 3,022.29 = 1,258.50 : x
  2. Step 2: Convert to fraction form
    2,190.06/3,022.29 = 1,258.50/x
  3. Step 3: Cross multiply
    2,190.06x = 3,022.29 × 1,258.50
  4. Step 4: Simplify right side
    2,190.06x = 3,803,551.97
  5. Step 5: Solve for x
    x = 3,803,551.97/2,190.06
  6. Step 6: Final answer
    x = 1,736.73

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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.