Home / 6,276.92-9,408.81-2,115.49

Finding the Fourth Proportional to 6,276.92, 9,408.81 and 2,115.49

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Solution

The fourth proportional to 6,276.92, 9,408.81 and 2,115.49 is: 3,171.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,276.92 : 9,408.81 = 2,115.49 : x
  2. Step 2: Convert to fraction form
    6,276.92/9,408.81 = 2,115.49/x
  3. Step 3: Cross multiply
    6,276.92x = 9,408.81 × 2,115.49
  4. Step 4: Simplify right side
    6,276.92x = 19,904,243.47
  5. Step 5: Solve for x
    x = 19,904,243.47/6,276.92
  6. Step 6: Final answer
    x = 3,171.02

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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.