Home / 4,989.49-6,885.90-2,751.80

Finding the Fourth Proportional to 4,989.49, 6,885.90 and 2,751.80

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Solution

The fourth proportional to 4,989.49, 6,885.90 and 2,751.80 is: 3,797.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,989.49 : 6,885.90 = 2,751.80 : x
  2. Step 2: Convert to fraction form
    4,989.49/6,885.90 = 2,751.80/x
  3. Step 3: Cross multiply
    4,989.49x = 6,885.90 × 2,751.80
  4. Step 4: Simplify right side
    4,989.49x = 18,948,619.62
  5. Step 5: Solve for x
    x = 18,948,619.62/4,989.49
  6. Step 6: Final answer
    x = 3,797.71

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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.