Home / 3,989.05-5,502.90-2,664.53

Finding the Fourth Proportional to 3,989.05, 5,502.90 and 2,664.53

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Solution

The fourth proportional to 3,989.05, 5,502.90 and 2,664.53 is: 3,675.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,989.05 : 5,502.90 = 2,664.53 : x
  2. Step 2: Convert to fraction form
    3,989.05/5,502.90 = 2,664.53/x
  3. Step 3: Cross multiply
    3,989.05x = 5,502.90 × 2,664.53
  4. Step 4: Simplify right side
    3,989.05x = 14,662,645.25
  5. Step 5: Solve for x
    x = 14,662,645.25/3,989.05
  6. Step 6: Final answer
    x = 3,675.73

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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.