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Finding the Fourth Proportional to 4,888.79, 6,745.88 and 2,764.61

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Solution

The fourth proportional to 4,888.79, 6,745.88 and 2,764.61 is: 3,814.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,888.79 : 6,745.88 = 2,764.61 : x
  2. Step 2: Convert to fraction form
    4,888.79/6,745.88 = 2,764.61/x
  3. Step 3: Cross multiply
    4,888.79x = 6,745.88 × 2,764.61
  4. Step 4: Simplify right side
    4,888.79x = 18,649,679.75
  5. Step 5: Solve for x
    x = 18,649,679.75/4,888.79
  6. Step 6: Final answer
    x = 3,814.79

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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.