Home / 4,087.87-6,123.98-2,765.12

Finding the Fourth Proportional to 4,087.87, 6,123.98 and 2,765.12

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Solution

The fourth proportional to 4,087.87, 6,123.98 and 2,765.12 is: 4,142.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,087.87 : 6,123.98 = 2,765.12 : x
  2. Step 2: Convert to fraction form
    4,087.87/6,123.98 = 2,765.12/x
  3. Step 3: Cross multiply
    4,087.87x = 6,123.98 × 2,765.12
  4. Step 4: Simplify right side
    4,087.87x = 16,933,568.38
  5. Step 5: Solve for x
    x = 16,933,568.38/4,087.87
  6. Step 6: Final answer
    x = 4,142.40

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1.5x scale

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.