Home / 7,321.40-10,982.19-2,644.76

Finding the Fourth Proportional to 7,321.40, 10,982.19 and 2,644.76

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Solution

The fourth proportional to 7,321.40, 10,982.19 and 2,644.76 is: 3,967.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,321.40 : 10,982.19 = 2,644.76 : x
  2. Step 2: Convert to fraction form
    7,321.40/10,982.19 = 2,644.76/x
  3. Step 3: Cross multiply
    7,321.40x = 10,982.19 × 2,644.76
  4. Step 4: Simplify right side
    7,321.40x = 29,045,256.82
  5. Step 5: Solve for x
    x = 29,045,256.82/7,321.40
  6. Step 6: Final answer
    x = 3,967.17

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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.