Home / 8,090.58-12,132.21-3,160.11

Finding the Fourth Proportional to 8,090.58, 12,132.21 and 3,160.11

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Solution

The fourth proportional to 8,090.58, 12,132.21 and 3,160.11 is: 4,738.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,090.58 : 12,132.21 = 3,160.11 : x
  2. Step 2: Convert to fraction form
    8,090.58/12,132.21 = 3,160.11/x
  3. Step 3: Cross multiply
    8,090.58x = 12,132.21 × 3,160.11
  4. Step 4: Simplify right side
    8,090.58x = 38,339,175.49
  5. Step 5: Solve for x
    x = 38,339,175.49/8,090.58
  6. Step 6: Final answer
    x = 4,738.74

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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.