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Finding the Fourth Proportional to 4,509.92, 6,219.67 and 2,831.49

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Solution

The fourth proportional to 4,509.92, 6,219.67 and 2,831.49 is: 3,904.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,509.92 : 6,219.67 = 2,831.49 : x
  2. Step 2: Convert to fraction form
    4,509.92/6,219.67 = 2,831.49/x
  3. Step 3: Cross multiply
    4,509.92x = 6,219.67 × 2,831.49
  4. Step 4: Simplify right side
    4,509.92x = 17,610,902.20
  5. Step 5: Solve for x
    x = 17,610,902.20/4,509.92
  6. Step 6: Final answer
    x = 3,904.92

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.