Home / 8,135.64-12,202.08-2,290.86

Finding the Fourth Proportional to 8,135.64, 12,202.08 and 2,290.86

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Solution

The fourth proportional to 8,135.64, 12,202.08 and 2,290.86 is: 3,435.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,135.64 : 12,202.08 = 2,290.86 : x
  2. Step 2: Convert to fraction form
    8,135.64/12,202.08 = 2,290.86/x
  3. Step 3: Cross multiply
    8,135.64x = 12,202.08 × 2,290.86
  4. Step 4: Simplify right side
    8,135.64x = 27,953,256.99
  5. Step 5: Solve for x
    x = 27,953,256.99/8,135.64
  6. Step 6: Final answer
    x = 3,435.90

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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.