Home / 3,828.81-5,743.89-1,330.32

Finding the Fourth Proportional to 3,828.81, 5,743.89 and 1,330.32

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Solution

The fourth proportional to 3,828.81, 5,743.89 and 1,330.32 is: 1,995.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,828.81 : 5,743.89 = 1,330.32 : x
  2. Step 2: Convert to fraction form
    3,828.81/5,743.89 = 1,330.32/x
  3. Step 3: Cross multiply
    3,828.81x = 5,743.89 × 1,330.32
  4. Step 4: Simplify right side
    3,828.81x = 7,641,211.74
  5. Step 5: Solve for x
    x = 7,641,211.74/3,828.81
  6. Step 6: Final answer
    x = 1,995.71

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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.