Home / 4,090.48-6,135.86-1,279.57

Finding the Fourth Proportional to 4,090.48, 6,135.86 and 1,279.57

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Solution

The fourth proportional to 4,090.48, 6,135.86 and 1,279.57 is: 1,919.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,090.48 : 6,135.86 = 1,279.57 : x
  2. Step 2: Convert to fraction form
    4,090.48/6,135.86 = 1,279.57/x
  3. Step 3: Cross multiply
    4,090.48x = 6,135.86 × 1,279.57
  4. Step 4: Simplify right side
    4,090.48x = 7,851,234.90
  5. Step 5: Solve for x
    x = 7,851,234.90/4,090.48
  6. Step 6: Final answer
    x = 1,919.39

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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.