Home / 7,278.41-10,908.49-3,113.53

Finding the Fourth Proportional to 7,278.41, 10,908.49 and 3,113.53

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Solution

The fourth proportional to 7,278.41, 10,908.49 and 3,113.53 is: 4,666.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,278.41 : 10,908.49 = 3,113.53 : x
  2. Step 2: Convert to fraction form
    7,278.41/10,908.49 = 3,113.53/x
  3. Step 3: Cross multiply
    7,278.41x = 10,908.49 × 3,113.53
  4. Step 4: Simplify right side
    7,278.41x = 33,963,910.87
  5. Step 5: Solve for x
    x = 33,963,910.87/7,278.41
  6. Step 6: Final answer
    x = 4,666.39

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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.