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Finding the Fourth Proportional to 638.36, 962.84 and 562.28

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Solution

The fourth proportional to 638.36, 962.84 and 562.28 is: 848.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    638.36 : 962.84 = 562.28 : x
  2. Step 2: Convert to fraction form
    638.36/962.84 = 562.28/x
  3. Step 3: Cross multiply
    638.36x = 962.84 × 562.28
  4. Step 4: Simplify right side
    638.36x = 541,382.27
  5. Step 5: Solve for x
    x = 541,382.27/638.36
  6. Step 6: Final answer
    x = 848.08

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.