Home / 3,989.41-5,504.55-2,497.79

Finding the Fourth Proportional to 3,989.41, 5,504.55 and 2,497.79

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Solution

The fourth proportional to 3,989.41, 5,504.55 and 2,497.79 is: 3,446.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,989.41 : 5,504.55 = 2,497.79 : x
  2. Step 2: Convert to fraction form
    3,989.41/5,504.55 = 2,497.79/x
  3. Step 3: Cross multiply
    3,989.41x = 5,504.55 × 2,497.79
  4. Step 4: Simplify right side
    3,989.41x = 13,749,209.94
  5. Step 5: Solve for x
    x = 13,749,209.94/3,989.41
  6. Step 6: Final answer
    x = 3,446.43

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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.