Home / 3,187.66-4,781.48-2,777.08

Finding the Fourth Proportional to 3,187.66, 4,781.48 and 2,777.08

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Solution

The fourth proportional to 3,187.66, 4,781.48 and 2,777.08 is: 4,165.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,187.66 : 4,781.48 = 2,777.08 : x
  2. Step 2: Convert to fraction form
    3,187.66/4,781.48 = 2,777.08/x
  3. Step 3: Cross multiply
    3,187.66x = 4,781.48 × 2,777.08
  4. Step 4: Simplify right side
    3,187.66x = 13,278,552.48
  5. Step 5: Solve for x
    x = 13,278,552.48/3,187.66
  6. Step 6: Final answer
    x = 4,165.61

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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.