Home / 5,422.91-8,137.60-3,776.18

Finding the Fourth Proportional to 5,422.91, 8,137.60 and 3,776.18

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Solution

The fourth proportional to 5,422.91, 8,137.60 and 3,776.18 is: 5,666.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,422.91 : 8,137.60 = 3,776.18 : x
  2. Step 2: Convert to fraction form
    5,422.91/8,137.60 = 3,776.18/x
  3. Step 3: Cross multiply
    5,422.91x = 8,137.60 × 3,776.18
  4. Step 4: Simplify right side
    5,422.91x = 30,728,992.24
  5. Step 5: Solve for x
    x = 30,728,992.24/5,422.91
  6. Step 6: Final answer
    x = 5,666.52

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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.