Home / 3,155.82-4,731.32-1,923

Finding the Fourth Proportional to 3,155.82, 4,731.32 and 1,923

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Solution

The fourth proportional to 3,155.82, 4,731.32 and 1,923 is: 2,883.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,155.82 : 4,731.32 = 1,923 : x
  2. Step 2: Convert to fraction form
    3,155.82/4,731.32 = 1,923/x
  3. Step 3: Cross multiply
    3,155.82x = 4,731.32 × 1,923
  4. Step 4: Simplify right side
    3,155.82x = 9,098,328.36
  5. Step 5: Solve for x
    x = 9,098,328.36/3,155.82
  6. Step 6: Final answer
    x = 2,883.03

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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.