Home / 8,217.03-12,319.77-2,878.90

Finding the Fourth Proportional to 8,217.03, 12,319.77 and 2,878.90

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Solution

The fourth proportional to 8,217.03, 12,319.77 and 2,878.90 is: 4,316.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,217.03 : 12,319.77 = 2,878.90 : x
  2. Step 2: Convert to fraction form
    8,217.03/12,319.77 = 2,878.90/x
  3. Step 3: Cross multiply
    8,217.03x = 12,319.77 × 2,878.90
  4. Step 4: Simplify right side
    8,217.03x = 35,467,435.15
  5. Step 5: Solve for x
    x = 35,467,435.15/8,217.03
  6. Step 6: Final answer
    x = 4,316.33

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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.