Home / 7,212.07-10,819.42-3,316.38

Finding the Fourth Proportional to 7,212.07, 10,819.42 and 3,316.38

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Solution

The fourth proportional to 7,212.07, 10,819.42 and 3,316.38 is: 4,975.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,212.07 : 10,819.42 = 3,316.38 : x
  2. Step 2: Convert to fraction form
    7,212.07/10,819.42 = 3,316.38/x
  3. Step 3: Cross multiply
    7,212.07x = 10,819.42 × 3,316.38
  4. Step 4: Simplify right side
    7,212.07x = 35,881,258.15
  5. Step 5: Solve for x
    x = 35,881,258.15/7,212.07
  6. Step 6: Final answer
    x = 4,975.17

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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.