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Finding the Fourth Proportional to 2,671.44, 4,007.16 and 1,028.76

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Solution

The fourth proportional to 2,671.44, 4,007.16 and 1,028.76 is: 1,543.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,671.44 : 4,007.16 = 1,028.76 : x
  2. Step 2: Convert to fraction form
    2,671.44/4,007.16 = 1,028.76/x
  3. Step 3: Cross multiply
    2,671.44x = 4,007.16 × 1,028.76
  4. Step 4: Simplify right side
    2,671.44x = 4,122,405.92
  5. Step 5: Solve for x
    x = 4,122,405.92/2,671.44
  6. Step 6: Final answer
    x = 1,543.14

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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.