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Finding the Fourth Proportional to 4,989.88, 6,885.88 and 2,751.85

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Solution

The fourth proportional to 4,989.88, 6,885.88 and 2,751.85 is: 3,797.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,989.88 : 6,885.88 = 2,751.85 : x
  2. Step 2: Convert to fraction form
    4,989.88/6,885.88 = 2,751.85/x
  3. Step 3: Cross multiply
    4,989.88x = 6,885.88 × 2,751.85
  4. Step 4: Simplify right side
    4,989.88x = 18,948,895.12
  5. Step 5: Solve for x
    x = 18,948,895.12/4,989.88
  6. Step 6: Final answer
    x = 3,797.47

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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.