Home / 8,214.08-12,320.94-2,290.81

Finding the Fourth Proportional to 8,214.08, 12,320.94 and 2,290.81

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Solution

The fourth proportional to 8,214.08, 12,320.94 and 2,290.81 is: 3,436.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,214.08 : 12,320.94 = 2,290.81 : x
  2. Step 2: Convert to fraction form
    8,214.08/12,320.94 = 2,290.81/x
  3. Step 3: Cross multiply
    8,214.08x = 12,320.94 × 2,290.81
  4. Step 4: Simplify right side
    8,214.08x = 28,224,874.36
  5. Step 5: Solve for x
    x = 28,224,874.36/8,214.08
  6. Step 6: Final answer
    x = 3,436.16

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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.