Home / 2,015.45-3,023.09-554.56

Finding the Fourth Proportional to 2,015.45, 3,023.09 and 554.56

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Solution

The fourth proportional to 2,015.45, 3,023.09 and 554.56 is: 831.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,015.45 : 3,023.09 = 554.56 : x
  2. Step 2: Convert to fraction form
    2,015.45/3,023.09 = 554.56/x
  3. Step 3: Cross multiply
    2,015.45x = 3,023.09 × 554.56
  4. Step 4: Simplify right side
    2,015.45x = 1,676,474.46
  5. Step 5: Solve for x
    x = 1,676,474.46/2,015.45
  6. Step 6: Final answer
    x = 831.81

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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.