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Finding the Fourth Proportional to 4,812.52, 6,639.96 and 2,922.52

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Solution

The fourth proportional to 4,812.52, 6,639.96 and 2,922.52 is: 4,032.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,812.52 : 6,639.96 = 2,922.52 : x
  2. Step 2: Convert to fraction form
    4,812.52/6,639.96 = 2,922.52/x
  3. Step 3: Cross multiply
    4,812.52x = 6,639.96 × 2,922.52
  4. Step 4: Simplify right side
    4,812.52x = 19,405,415.90
  5. Step 5: Solve for x
    x = 19,405,415.90/4,812.52
  6. Step 6: Final answer
    x = 4,032.28

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Why These Related Problems?

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