Home / 7,115.05-10,674.74-3,219.49

Finding the Fourth Proportional to 7,115.05, 10,674.74 and 3,219.49

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Solution

The fourth proportional to 7,115.05, 10,674.74 and 3,219.49 is: 4,830.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,115.05 : 10,674.74 = 3,219.49 : x
  2. Step 2: Convert to fraction form
    7,115.05/10,674.74 = 3,219.49/x
  3. Step 3: Cross multiply
    7,115.05x = 10,674.74 × 3,219.49
  4. Step 4: Simplify right side
    7,115.05x = 34,367,218.68
  5. Step 5: Solve for x
    x = 34,367,218.68/7,115.05
  6. Step 6: Final answer
    x = 4,830.21

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1.5x scale

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.