Home / 7,490.70-11,232.40-3,982.39

Finding the Fourth Proportional to 7,490.70, 11,232.40 and 3,982.39

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Solution

The fourth proportional to 7,490.70, 11,232.40 and 3,982.39 is: 5,971.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,490.70 : 11,232.40 = 3,982.39 : x
  2. Step 2: Convert to fraction form
    7,490.70/11,232.40 = 3,982.39/x
  3. Step 3: Cross multiply
    7,490.70x = 11,232.40 × 3,982.39
  4. Step 4: Simplify right side
    7,490.70x = 44,731,774.33
  5. Step 5: Solve for x
    x = 44,731,774.33/7,490.70
  6. Step 6: Final answer
    x = 5,971.64

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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.