Home / 7,212.33-10,820.66-3,318.93

Finding the Fourth Proportional to 7,212.33, 10,820.66 and 3,318.93

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Solution

The fourth proportional to 7,212.33, 10,820.66 and 3,318.93 is: 4,979.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,212.33 : 10,820.66 = 3,318.93 : x
  2. Step 2: Convert to fraction form
    7,212.33/10,820.66 = 3,318.93/x
  3. Step 3: Cross multiply
    7,212.33x = 10,820.66 × 3,318.93
  4. Step 4: Simplify right side
    7,212.33x = 35,912,996.50
  5. Step 5: Solve for x
    x = 35,912,996.50/7,212.33
  6. Step 6: Final answer
    x = 4,979.39

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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.