Home / 5,218.81-7,829.09-2,299.16

Finding the Fourth Proportional to 5,218.81, 7,829.09 and 2,299.16

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Solution

The fourth proportional to 5,218.81, 7,829.09 and 2,299.16 is: 3,449.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,218.81 : 7,829.09 = 2,299.16 : x
  2. Step 2: Convert to fraction form
    5,218.81/7,829.09 = 2,299.16/x
  3. Step 3: Cross multiply
    5,218.81x = 7,829.09 × 2,299.16
  4. Step 4: Simplify right side
    5,218.81x = 18,000,330.56
  5. Step 5: Solve for x
    x = 18,000,330.56/5,218.81
  6. Step 6: Final answer
    x = 3,449.13

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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.