Home / 5,419.54-8,129.32-1,523.95

Finding the Fourth Proportional to 5,419.54, 8,129.32 and 1,523.95

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Solution

The fourth proportional to 5,419.54, 8,129.32 and 1,523.95 is: 2,285.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,419.54 : 8,129.32 = 1,523.95 : x
  2. Step 2: Convert to fraction form
    5,419.54/8,129.32 = 1,523.95/x
  3. Step 3: Cross multiply
    5,419.54x = 8,129.32 × 1,523.95
  4. Step 4: Simplify right side
    5,419.54x = 12,388,649.27
  5. Step 5: Solve for x
    x = 12,388,649.27/5,419.54
  6. Step 6: Final answer
    x = 2,285.92

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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.