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Finding the Fourth Proportional to 6,128.58, 9,189.17 and 2,750.76

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Solution

The fourth proportional to 6,128.58, 9,189.17 and 2,750.76 is: 4,124.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,128.58 : 9,189.17 = 2,750.76 : x
  2. Step 2: Convert to fraction form
    6,128.58/9,189.17 = 2,750.76/x
  3. Step 3: Cross multiply
    6,128.58x = 9,189.17 × 2,750.76
  4. Step 4: Simplify right side
    6,128.58x = 25,277,201.27
  5. Step 5: Solve for x
    x = 25,277,201.27/6,128.58
  6. Step 6: Final answer
    x = 4,124.48

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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.