Home / 6,821.20-10,227.34-3,118.29

Finding the Fourth Proportional to 6,821.20, 10,227.34 and 3,118.29

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Solution

The fourth proportional to 6,821.20, 10,227.34 and 3,118.29 is: 4,675.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,821.20 : 10,227.34 = 3,118.29 : x
  2. Step 2: Convert to fraction form
    6,821.20/10,227.34 = 3,118.29/x
  3. Step 3: Cross multiply
    6,821.20x = 10,227.34 × 3,118.29
  4. Step 4: Simplify right side
    6,821.20x = 31,891,812.05
  5. Step 5: Solve for x
    x = 31,891,812.05/6,821.20
  6. Step 6: Final answer
    x = 4,675.40

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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.