Home / 3,693.76-5,531.82-2,130.49

Finding the Fourth Proportional to 3,693.76, 5,531.82 and 2,130.49

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Solution

The fourth proportional to 3,693.76, 5,531.82 and 2,130.49 is: 3,190.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,693.76 : 5,531.82 = 2,130.49 : x
  2. Step 2: Convert to fraction form
    3,693.76/5,531.82 = 2,130.49/x
  3. Step 3: Cross multiply
    3,693.76x = 5,531.82 × 2,130.49
  4. Step 4: Simplify right side
    3,693.76x = 11,785,487.19
  5. Step 5: Solve for x
    x = 11,785,487.19/3,693.76
  6. Step 6: Final answer
    x = 3,190.65

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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.