Home / 3,961.08-5,940.90-1,187.10

Finding the Fourth Proportional to 3,961.08, 5,940.90 and 1,187.10

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Solution

The fourth proportional to 3,961.08, 5,940.90 and 1,187.10 is: 1,780.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,961.08 : 5,940.90 = 1,187.10 : x
  2. Step 2: Convert to fraction form
    3,961.08/5,940.90 = 1,187.10/x
  3. Step 3: Cross multiply
    3,961.08x = 5,940.90 × 1,187.10
  4. Step 4: Simplify right side
    3,961.08x = 7,052,442.39
  5. Step 5: Solve for x
    x = 7,052,442.39/3,961.08
  6. Step 6: Final answer
    x = 1,780.43

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1.5x scale

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.