Home / 8,140.82-12,210.14-2,297.90

Finding the Fourth Proportional to 8,140.82, 12,210.14 and 2,297.90

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Solution

The fourth proportional to 8,140.82, 12,210.14 and 2,297.90 is: 3,446.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,140.82 : 12,210.14 = 2,297.90 : x
  2. Step 2: Convert to fraction form
    8,140.82/12,210.14 = 2,297.90/x
  3. Step 3: Cross multiply
    8,140.82x = 12,210.14 × 2,297.90
  4. Step 4: Simplify right side
    8,140.82x = 28,057,680.71
  5. Step 5: Solve for x
    x = 28,057,680.71/8,140.82
  6. Step 6: Final answer
    x = 3,446.54

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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.