Home / 6,128.76-9,191.88-1,745.04

Finding the Fourth Proportional to 6,128.76, 9,191.88 and 1,745.04

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Solution

The fourth proportional to 6,128.76, 9,191.88 and 1,745.04 is: 2,617.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,128.76 : 9,191.88 = 1,745.04 : x
  2. Step 2: Convert to fraction form
    6,128.76/9,191.88 = 1,745.04/x
  3. Step 3: Cross multiply
    6,128.76x = 9,191.88 × 1,745.04
  4. Step 4: Simplify right side
    6,128.76x = 16,040,198.28
  5. Step 5: Solve for x
    x = 16,040,198.28/6,128.76
  6. Step 6: Final answer
    x = 2,617.20

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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.