Home / 6,128.39-9,189.34-2,663.75

Finding the Fourth Proportional to 6,128.39, 9,189.34 and 2,663.75

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Solution

The fourth proportional to 6,128.39, 9,189.34 and 2,663.75 is: 3,994.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,128.39 : 9,189.34 = 2,663.75 : x
  2. Step 2: Convert to fraction form
    6,128.39/9,189.34 = 2,663.75/x
  3. Step 3: Cross multiply
    6,128.39x = 9,189.34 × 2,663.75
  4. Step 4: Simplify right side
    6,128.39x = 24,478,104.43
  5. Step 5: Solve for x
    x = 24,478,104.43/6,128.39
  6. Step 6: Final answer
    x = 3,994.21

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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.