Home / 7,178.57-10,744.81-3,838.47

Finding the Fourth Proportional to 7,178.57, 10,744.81 and 3,838.47

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Solution

The fourth proportional to 7,178.57, 10,744.81 and 3,838.47 is: 5,745.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,178.57 : 10,744.81 = 3,838.47 : x
  2. Step 2: Convert to fraction form
    7,178.57/10,744.81 = 3,838.47/x
  3. Step 3: Cross multiply
    7,178.57x = 10,744.81 × 3,838.47
  4. Step 4: Simplify right side
    7,178.57x = 41,243,652.19
  5. Step 5: Solve for x
    x = 41,243,652.19/7,178.57
  6. Step 6: Final answer
    x = 5,745.39

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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.