Home / 3,989.67-5,504.40-2,664.24

Finding the Fourth Proportional to 3,989.67, 5,504.40 and 2,664.24

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Solution

The fourth proportional to 3,989.67, 5,504.40 and 2,664.24 is: 3,675.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,989.67 : 5,504.40 = 2,664.24 : x
  2. Step 2: Convert to fraction form
    3,989.67/5,504.40 = 2,664.24/x
  3. Step 3: Cross multiply
    3,989.67x = 5,504.40 × 2,664.24
  4. Step 4: Simplify right side
    3,989.67x = 14,665,042.66
  5. Step 5: Solve for x
    x = 14,665,042.66/3,989.67
  6. Step 6: Final answer
    x = 3,675.75

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1.5x scale

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.