Home / 7,329.21-10,114.32-3,972

Finding the Fourth Proportional to 7,329.21, 10,114.32 and 3,972

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Solution

The fourth proportional to 7,329.21, 10,114.32 and 3,972 is: 5,481.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,329.21 : 10,114.32 = 3,972 : x
  2. Step 2: Convert to fraction form
    7,329.21/10,114.32 = 3,972/x
  3. Step 3: Cross multiply
    7,329.21x = 10,114.32 × 3,972
  4. Step 4: Simplify right side
    7,329.21x = 40,174,079.04
  5. Step 5: Solve for x
    x = 40,174,079.04/7,329.21
  6. Step 6: Final answer
    x = 5,481.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.