Home / 4,949.75-7,427.87-1,871.75

Finding the Fourth Proportional to 4,949.75, 7,427.87 and 1,871.75

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Solution

The fourth proportional to 4,949.75, 7,427.87 and 1,871.75 is: 2,808.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,949.75 : 7,427.87 = 1,871.75 : x
  2. Step 2: Convert to fraction form
    4,949.75/7,427.87 = 1,871.75/x
  3. Step 3: Cross multiply
    4,949.75x = 7,427.87 × 1,871.75
  4. Step 4: Simplify right side
    4,949.75x = 13,903,115.67
  5. Step 5: Solve for x
    x = 13,903,115.67/4,949.75
  6. Step 6: Final answer
    x = 2,808.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.