Home / 5,178.26-7,137.47-3,663.87

Finding the Fourth Proportional to 5,178.26, 7,137.47 and 3,663.87

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Solution

The fourth proportional to 5,178.26, 7,137.47 and 3,663.87 is: 5,050.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,178.26 : 7,137.47 = 3,663.87 : x
  2. Step 2: Convert to fraction form
    5,178.26/7,137.47 = 3,663.87/x
  3. Step 3: Cross multiply
    5,178.26x = 7,137.47 × 3,663.87
  4. Step 4: Simplify right side
    5,178.26x = 26,150,723.99
  5. Step 5: Solve for x
    x = 26,150,723.99/5,178.26
  6. Step 6: Final answer
    x = 5,050.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.