Home / 1,930.11-2,893.55-1,108.10

Finding the Fourth Proportional to 1,930.11, 2,893.55 and 1,108.10

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Solution

The fourth proportional to 1,930.11, 2,893.55 and 1,108.10 is: 1,661.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,930.11 : 2,893.55 = 1,108.10 : x
  2. Step 2: Convert to fraction form
    1,930.11/2,893.55 = 1,108.10/x
  3. Step 3: Cross multiply
    1,930.11x = 2,893.55 × 1,108.10
  4. Step 4: Simplify right side
    1,930.11x = 3,206,322.75
  5. Step 5: Solve for x
    x = 3,206,322.75/1,930.11
  6. Step 6: Final answer
    x = 1,661.21

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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.