Home / 7,935.87-11,897.31-3,982.36

Finding the Fourth Proportional to 7,935.87, 11,897.31 and 3,982.36

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Solution

The fourth proportional to 7,935.87, 11,897.31 and 3,982.36 is: 5,970.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,935.87 : 11,897.31 = 3,982.36 : x
  2. Step 2: Convert to fraction form
    7,935.87/11,897.31 = 3,982.36/x
  3. Step 3: Cross multiply
    7,935.87x = 11,897.31 × 3,982.36
  4. Step 4: Simplify right side
    7,935.87x = 47,379,386.32
  5. Step 5: Solve for x
    x = 47,379,386.32/7,935.87
  6. Step 6: Final answer
    x = 5,970.28

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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.