Home / 8,090.32-12,135.56-2,543.54

Finding the Fourth Proportional to 8,090.32, 12,135.56 and 2,543.54

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Solution

The fourth proportional to 8,090.32, 12,135.56 and 2,543.54 is: 3,815.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,090.32 : 12,135.56 = 2,543.54 : x
  2. Step 2: Convert to fraction form
    8,090.32/12,135.56 = 2,543.54/x
  3. Step 3: Cross multiply
    8,090.32x = 12,135.56 × 2,543.54
  4. Step 4: Simplify right side
    8,090.32x = 30,867,282.28
  5. Step 5: Solve for x
    x = 30,867,282.28/8,090.32
  6. Step 6: Final answer
    x = 3,815.34

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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.