Home / 1,908.31-2,863.55-935.23

Finding the Fourth Proportional to 1,908.31, 2,863.55 and 935.23

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Solution

The fourth proportional to 1,908.31, 2,863.55 and 935.23 is: 1,403.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,908.31 : 2,863.55 = 935.23 : x
  2. Step 2: Convert to fraction form
    1,908.31/2,863.55 = 935.23/x
  3. Step 3: Cross multiply
    1,908.31x = 2,863.55 × 935.23
  4. Step 4: Simplify right side
    1,908.31x = 2,678,077.87
  5. Step 5: Solve for x
    x = 2,678,077.87/1,908.31
  6. Step 6: Final answer
    x = 1,403.38

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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.