Home / 6,128.54-9,189.09-2,750.72

Finding the Fourth Proportional to 6,128.54, 9,189.09 and 2,750.72

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Solution

The fourth proportional to 6,128.54, 9,189.09 and 2,750.72 is: 4,124.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,128.54 : 9,189.09 = 2,750.72 : x
  2. Step 2: Convert to fraction form
    6,128.54/9,189.09 = 2,750.72/x
  3. Step 3: Cross multiply
    6,128.54x = 9,189.09 × 2,750.72
  4. Step 4: Simplify right side
    6,128.54x = 25,276,567.70
  5. Step 5: Solve for x
    x = 25,276,567.70/6,128.54
  6. Step 6: Final answer
    x = 4,124.41

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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.