Home / 2,258.06-3,378.18-2,119.82

Finding the Fourth Proportional to 2,258.06, 3,378.18 and 2,119.82

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Solution

The fourth proportional to 2,258.06, 3,378.18 and 2,119.82 is: 3,171.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,258.06 : 3,378.18 = 2,119.82 : x
  2. Step 2: Convert to fraction form
    2,258.06/3,378.18 = 2,119.82/x
  3. Step 3: Cross multiply
    2,258.06x = 3,378.18 × 2,119.82
  4. Step 4: Simplify right side
    2,258.06x = 7,161,133.53
  5. Step 5: Solve for x
    x = 7,161,133.53/2,258.06
  6. Step 6: Final answer
    x = 3,171.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.