Home / 3,810.70-5,716.86-1,178.38

Finding the Fourth Proportional to 3,810.70, 5,716.86 and 1,178.38

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Solution

The fourth proportional to 3,810.70, 5,716.86 and 1,178.38 is: 1,767.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,810.70 : 5,716.86 = 1,178.38 : x
  2. Step 2: Convert to fraction form
    3,810.70/5,716.86 = 1,178.38/x
  3. Step 3: Cross multiply
    3,810.70x = 5,716.86 × 1,178.38
  4. Step 4: Simplify right side
    3,810.70x = 6,736,633.49
  5. Step 5: Solve for x
    x = 6,736,633.49/3,810.70
  6. Step 6: Final answer
    x = 1,767.82

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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.