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Finding the Fourth Proportional to 4,519.94, 6,780.62 and 1,399.22

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Solution

The fourth proportional to 4,519.94, 6,780.62 and 1,399.22 is: 2,099.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,519.94 : 6,780.62 = 1,399.22 : x
  2. Step 2: Convert to fraction form
    4,519.94/6,780.62 = 1,399.22/x
  3. Step 3: Cross multiply
    4,519.94x = 6,780.62 × 1,399.22
  4. Step 4: Simplify right side
    4,519.94x = 9,487,579.12
  5. Step 5: Solve for x
    x = 9,487,579.12/4,519.94
  6. Step 6: Final answer
    x = 2,099.05

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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.