Home / 1,935.18-2,902.41-636.34

Finding the Fourth Proportional to 1,935.18, 2,902.41 and 636.34

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Solution

The fourth proportional to 1,935.18, 2,902.41 and 636.34 is: 954.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,935.18 : 2,902.41 = 636.34 : x
  2. Step 2: Convert to fraction form
    1,935.18/2,902.41 = 636.34/x
  3. Step 3: Cross multiply
    1,935.18x = 2,902.41 × 636.34
  4. Step 4: Simplify right side
    1,935.18x = 1,846,919.58
  5. Step 5: Solve for x
    x = 1,846,919.58/1,935.18
  6. Step 6: Final answer
    x = 954.39

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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.