Home / 5,087.87-7,634.74-2,747.91

Finding the Fourth Proportional to 5,087.87, 7,634.74 and 2,747.91

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Solution

The fourth proportional to 5,087.87, 7,634.74 and 2,747.91 is: 4,123.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,087.87 : 7,634.74 = 2,747.91 : x
  2. Step 2: Convert to fraction form
    5,087.87/7,634.74 = 2,747.91/x
  3. Step 3: Cross multiply
    5,087.87x = 7,634.74 × 2,747.91
  4. Step 4: Simplify right side
    5,087.87x = 20,979,578.39
  5. Step 5: Solve for x
    x = 20,979,578.39/5,087.87
  6. Step 6: Final answer
    x = 4,123.45

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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.