Home / 5,320.99-7,982.78-2,399.30

Finding the Fourth Proportional to 5,320.99, 7,982.78 and 2,399.30

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Solution

The fourth proportional to 5,320.99, 7,982.78 and 2,399.30 is: 3,599.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,320.99 : 7,982.78 = 2,399.30 : x
  2. Step 2: Convert to fraction form
    5,320.99/7,982.78 = 2,399.30/x
  3. Step 3: Cross multiply
    5,320.99x = 7,982.78 × 2,399.30
  4. Step 4: Simplify right side
    5,320.99x = 19,153,032.14
  5. Step 5: Solve for x
    x = 19,153,032.14/5,320.99
  6. Step 6: Final answer
    x = 3,599.53

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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.