Home / 5,419.50-8,129.70-1,523.94

Finding the Fourth Proportional to 5,419.50, 8,129.70 and 1,523.94

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Solution

The fourth proportional to 5,419.50, 8,129.70 and 1,523.94 is: 2,286.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,419.50 : 8,129.70 = 1,523.94 : x
  2. Step 2: Convert to fraction form
    5,419.50/8,129.70 = 1,523.94/x
  3. Step 3: Cross multiply
    5,419.50x = 8,129.70 × 1,523.94
  4. Step 4: Simplify right side
    5,419.50x = 12,389,175.02
  5. Step 5: Solve for x
    x = 12,389,175.02/5,419.50
  6. Step 6: Final answer
    x = 2,286.04

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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.