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Finding the Fourth Proportional to 3,628.52, 5,007.44 and 1,972.52

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Solution

The fourth proportional to 3,628.52, 5,007.44 and 1,972.52 is: 2,722.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,628.52 : 5,007.44 = 1,972.52 : x
  2. Step 2: Convert to fraction form
    3,628.52/5,007.44 = 1,972.52/x
  3. Step 3: Cross multiply
    3,628.52x = 5,007.44 × 1,972.52
  4. Step 4: Simplify right side
    3,628.52x = 9,877,275.55
  5. Step 5: Solve for x
    x = 9,877,275.55/3,628.52
  6. Step 6: Final answer
    x = 2,722.12

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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.