Home / 3,125.88-4,687.74-1,178.68

Finding the Fourth Proportional to 3,125.88, 4,687.74 and 1,178.68

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Solution

The fourth proportional to 3,125.88, 4,687.74 and 1,178.68 is: 1,767.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,125.88 : 4,687.74 = 1,178.68 : x
  2. Step 2: Convert to fraction form
    3,125.88/4,687.74 = 1,178.68/x
  3. Step 3: Cross multiply
    3,125.88x = 4,687.74 × 1,178.68
  4. Step 4: Simplify right side
    3,125.88x = 5,525,345.38
  5. Step 5: Solve for x
    x = 5,525,345.38/3,125.88
  6. Step 6: Final answer
    x = 1,767.61

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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.