Home / 8,144.20-12,210.82-2,949.40

Finding the Fourth Proportional to 8,144.20, 12,210.82 and 2,949.40

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Solution

The fourth proportional to 8,144.20, 12,210.82 and 2,949.40 is: 4,422.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,144.20 : 12,210.82 = 2,949.40 : x
  2. Step 2: Convert to fraction form
    8,144.20/12,210.82 = 2,949.40/x
  3. Step 3: Cross multiply
    8,144.20x = 12,210.82 × 2,949.40
  4. Step 4: Simplify right side
    8,144.20x = 36,014,592.51
  5. Step 5: Solve for x
    x = 36,014,592.51/8,144.20
  6. Step 6: Final answer
    x = 4,422.12

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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.