Home / 6,745.34-9,305.87-4,091.78

Finding the Fourth Proportional to 6,745.34, 9,305.87 and 4,091.78

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Solution

The fourth proportional to 6,745.34, 9,305.87 and 4,091.78 is: 5,645.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,745.34 : 9,305.87 = 4,091.78 : x
  2. Step 2: Convert to fraction form
    6,745.34/9,305.87 = 4,091.78/x
  3. Step 3: Cross multiply
    6,745.34x = 9,305.87 × 4,091.78
  4. Step 4: Simplify right side
    6,745.34x = 38,077,505.76
  5. Step 5: Solve for x
    x = 38,077,505.76/6,745.34
  6. Step 6: Final answer
    x = 5,645.01

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1.5x scale

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.