Home / 5,682.05-8,521.75-2,170.78

Finding the Fourth Proportional to 5,682.05, 8,521.75 and 2,170.78

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Solution

The fourth proportional to 5,682.05, 8,521.75 and 2,170.78 is: 3,255.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,682.05 : 8,521.75 = 2,170.78 : x
  2. Step 2: Convert to fraction form
    5,682.05/8,521.75 = 2,170.78/x
  3. Step 3: Cross multiply
    5,682.05x = 8,521.75 × 2,170.78
  4. Step 4: Simplify right side
    5,682.05x = 18,498,844.47
  5. Step 5: Solve for x
    x = 18,498,844.47/5,682.05
  6. Step 6: Final answer
    x = 3,255.66

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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.