Home / 5,119.00-7,678.46-2,199.35

Finding the Fourth Proportional to 5,119.00, 7,678.46 and 2,199.35

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Solution

The fourth proportional to 5,119.00, 7,678.46 and 2,199.35 is: 3,299.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,119.00 : 7,678.46 = 2,199.35 : x
  2. Step 2: Convert to fraction form
    5,119.00/7,678.46 = 2,199.35/x
  3. Step 3: Cross multiply
    5,119.00x = 7,678.46 × 2,199.35
  4. Step 4: Simplify right side
    5,119.00x = 16,887,645.70
  5. Step 5: Solve for x
    x = 16,887,645.70/5,119.00
  6. Step 6: Final answer
    x = 3,299.01

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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.