Home / 7,331.21-10,997.65-2,137.08

Finding the Fourth Proportional to 7,331.21, 10,997.65 and 2,137.08

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Solution

The fourth proportional to 7,331.21, 10,997.65 and 2,137.08 is: 3,205.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,331.21 : 10,997.65 = 2,137.08 : x
  2. Step 2: Convert to fraction form
    7,331.21/10,997.65 = 2,137.08/x
  3. Step 3: Cross multiply
    7,331.21x = 10,997.65 × 2,137.08
  4. Step 4: Simplify right side
    7,331.21x = 23,502,857.86
  5. Step 5: Solve for x
    x = 23,502,857.86/7,331.21
  6. Step 6: Final answer
    x = 3,205.87

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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.