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Finding the Fourth Proportional to 2,015.50, 3,023.25 and 554.50

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Solution

The fourth proportional to 2,015.50, 3,023.25 and 554.50 is: 831.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,015.50 : 3,023.25 = 554.50 : x
  2. Step 2: Convert to fraction form
    2,015.50/3,023.25 = 554.50/x
  3. Step 3: Cross multiply
    2,015.50x = 3,023.25 × 554.50
  4. Step 4: Simplify right side
    2,015.50x = 1,676,392.13
  5. Step 5: Solve for x
    x = 1,676,392.13/2,015.50
  6. Step 6: Final answer
    x = 831.75

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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.