Home / 1,935.60-2,902.41-636.90

Finding the Fourth Proportional to 1,935.60, 2,902.41 and 636.90

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Solution

The fourth proportional to 1,935.60, 2,902.41 and 636.90 is: 955.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,935.60 : 2,902.41 = 636.90 : x
  2. Step 2: Convert to fraction form
    1,935.60/2,902.41 = 636.90/x
  3. Step 3: Cross multiply
    1,935.60x = 2,902.41 × 636.90
  4. Step 4: Simplify right side
    1,935.60x = 1,848,544.93
  5. Step 5: Solve for x
    x = 1,848,544.93/1,935.60
  6. Step 6: Final answer
    x = 955.02

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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.