Home / 3,129.15-4,697.82-2,095.80

Finding the Fourth Proportional to 3,129.15, 4,697.82 and 2,095.80

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Solution

The fourth proportional to 3,129.15, 4,697.82 and 2,095.80 is: 3,146.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,129.15 : 4,697.82 = 2,095.80 : x
  2. Step 2: Convert to fraction form
    3,129.15/4,697.82 = 2,095.80/x
  3. Step 3: Cross multiply
    3,129.15x = 4,697.82 × 2,095.80
  4. Step 4: Simplify right side
    3,129.15x = 9,845,691.16
  5. Step 5: Solve for x
    x = 9,845,691.16/3,129.15
  6. Step 6: Final answer
    x = 3,146.44

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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.