Home / 4,989.39-6,885.40-2,751.34

Finding the Fourth Proportional to 4,989.39, 6,885.40 and 2,751.34

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Solution

The fourth proportional to 4,989.39, 6,885.40 and 2,751.34 is: 3,796.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,989.39 : 6,885.40 = 2,751.34 : x
  2. Step 2: Convert to fraction form
    4,989.39/6,885.40 = 2,751.34/x
  3. Step 3: Cross multiply
    4,989.39x = 6,885.40 × 2,751.34
  4. Step 4: Simplify right side
    4,989.39x = 18,944,076.44
  5. Step 5: Solve for x
    x = 18,944,076.44/4,989.39
  6. Step 6: Final answer
    x = 3,796.87

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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.