Home / 5,429.38-8,147.99-2,798.99

Finding the Fourth Proportional to 5,429.38, 8,147.99 and 2,798.99

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Solution

The fourth proportional to 5,429.38, 8,147.99 and 2,798.99 is: 4,200.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,429.38 : 8,147.99 = 2,798.99 : x
  2. Step 2: Convert to fraction form
    5,429.38/8,147.99 = 2,798.99/x
  3. Step 3: Cross multiply
    5,429.38x = 8,147.99 × 2,798.99
  4. Step 4: Simplify right side
    5,429.38x = 22,806,142.53
  5. Step 5: Solve for x
    x = 22,806,142.53/5,429.38
  6. Step 6: Final answer
    x = 4,200.51

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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.