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Finding the Fourth Proportional to 6,128.80, 9,196.80 and 2,232.70

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Solution

The fourth proportional to 6,128.80, 9,196.80 and 2,232.70 is: 3,350.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,128.80 : 9,196.80 = 2,232.70 : x
  2. Step 2: Convert to fraction form
    6,128.80/9,196.80 = 2,232.70/x
  3. Step 3: Cross multiply
    6,128.80x = 9,196.80 × 2,232.70
  4. Step 4: Simplify right side
    6,128.80x = 20,533,695.36
  5. Step 5: Solve for x
    x = 20,533,695.36/6,128.80
  6. Step 6: Final answer
    x = 3,350.36

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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.