Home / 7,830.33-11,732.28-3,876.31

Finding the Fourth Proportional to 7,830.33, 11,732.28 and 3,876.31

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Solution

The fourth proportional to 7,830.33, 11,732.28 and 3,876.31 is: 5,807.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,830.33 : 11,732.28 = 3,876.31 : x
  2. Step 2: Convert to fraction form
    7,830.33/11,732.28 = 3,876.31/x
  3. Step 3: Cross multiply
    7,830.33x = 11,732.28 × 3,876.31
  4. Step 4: Simplify right side
    7,830.33x = 45,477,954.29
  5. Step 5: Solve for x
    x = 45,477,954.29/7,830.33
  6. Step 6: Final answer
    x = 5,807.92

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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.