Home / 2,015.20-3,022.74-554.44

Finding the Fourth Proportional to 2,015.20, 3,022.74 and 554.44

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Solution

The fourth proportional to 2,015.20, 3,022.74 and 554.44 is: 831.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,015.20 : 3,022.74 = 554.44 : x
  2. Step 2: Convert to fraction form
    2,015.20/3,022.74 = 554.44/x
  3. Step 3: Cross multiply
    2,015.20x = 3,022.74 × 554.44
  4. Step 4: Simplify right side
    2,015.20x = 1,675,927.97
  5. Step 5: Solve for x
    x = 1,675,927.97/2,015.20
  6. Step 6: Final answer
    x = 831.64

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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.