Home / 5,221.35-7,832.34-2,100.87

Finding the Fourth Proportional to 5,221.35, 7,832.34 and 2,100.87

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Solution

The fourth proportional to 5,221.35, 7,832.34 and 2,100.87 is: 3,151.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,221.35 : 7,832.34 = 2,100.87 : x
  2. Step 2: Convert to fraction form
    5,221.35/7,832.34 = 2,100.87/x
  3. Step 3: Cross multiply
    5,221.35x = 7,832.34 × 2,100.87
  4. Step 4: Simplify right side
    5,221.35x = 16,454,728.14
  5. Step 5: Solve for x
    x = 16,454,728.14/5,221.35
  6. Step 6: Final answer
    x = 3,151.43

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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.