Home / 4,518.88-6,778.94-1,399.14

Finding the Fourth Proportional to 4,518.88, 6,778.94 and 1,399.14

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Solution

The fourth proportional to 4,518.88, 6,778.94 and 1,399.14 is: 2,098.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,518.88 : 6,778.94 = 1,399.14 : x
  2. Step 2: Convert to fraction form
    4,518.88/6,778.94 = 1,399.14/x
  3. Step 3: Cross multiply
    4,518.88x = 6,778.94 × 1,399.14
  4. Step 4: Simplify right side
    4,518.88x = 9,484,679.12
  5. Step 5: Solve for x
    x = 9,484,679.12/4,518.88
  6. Step 6: Final answer
    x = 2,098.90

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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.