Home / 3,187.66-4,783.34-1,338.61

Finding the Fourth Proportional to 3,187.66, 4,783.34 and 1,338.61

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Solution

The fourth proportional to 3,187.66, 4,783.34 and 1,338.61 is: 2,008.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,187.66 : 4,783.34 = 1,338.61 : x
  2. Step 2: Convert to fraction form
    3,187.66/4,783.34 = 1,338.61/x
  3. Step 3: Cross multiply
    3,187.66x = 4,783.34 × 1,338.61
  4. Step 4: Simplify right side
    3,187.66x = 6,403,026.76
  5. Step 5: Solve for x
    x = 6,403,026.76/3,187.66
  6. Step 6: Final answer
    x = 2,008.69

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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.