Home / 7,278.34-10,908.38-3,113.46

Finding the Fourth Proportional to 7,278.34, 10,908.38 and 3,113.46

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Solution

The fourth proportional to 7,278.34, 10,908.38 and 3,113.46 is: 4,666.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,278.34 : 10,908.38 = 3,113.46 : x
  2. Step 2: Convert to fraction form
    7,278.34/10,908.38 = 3,113.46/x
  3. Step 3: Cross multiply
    7,278.34x = 10,908.38 × 3,113.46
  4. Step 4: Simplify right side
    7,278.34x = 33,962,804.79
  5. Step 5: Solve for x
    x = 33,962,804.79/7,278.34
  6. Step 6: Final answer
    x = 4,666.28

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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.