Home / 5,425.80-8,137.68-1,529.28

Finding the Fourth Proportional to 5,425.80, 8,137.68 and 1,529.28

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Solution

The fourth proportional to 5,425.80, 8,137.68 and 1,529.28 is: 2,293.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,425.80 : 8,137.68 = 1,529.28 : x
  2. Step 2: Convert to fraction form
    5,425.80/8,137.68 = 1,529.28/x
  3. Step 3: Cross multiply
    5,425.80x = 8,137.68 × 1,529.28
  4. Step 4: Simplify right side
    5,425.80x = 12,444,791.27
  5. Step 5: Solve for x
    x = 12,444,791.27/5,425.80
  6. Step 6: Final answer
    x = 2,293.63

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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.