Home / 1,644.30-2,268.86-935.87

Finding the Fourth Proportional to 1,644.30, 2,268.86 and 935.87

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Solution

The fourth proportional to 1,644.30, 2,268.86 and 935.87 is: 1,291.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,644.30 : 2,268.86 = 935.87 : x
  2. Step 2: Convert to fraction form
    1,644.30/2,268.86 = 935.87/x
  3. Step 3: Cross multiply
    1,644.30x = 2,268.86 × 935.87
  4. Step 4: Simplify right side
    1,644.30x = 2,123,341.98
  5. Step 5: Solve for x
    x = 2,123,341.98/1,644.30
  6. Step 6: Final answer
    x = 1,291.33

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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.