Home / 5,212.09-7,190.64-3,219.19

Finding the Fourth Proportional to 5,212.09, 7,190.64 and 3,219.19

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Solution

The fourth proportional to 5,212.09, 7,190.64 and 3,219.19 is: 4,441.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,212.09 : 7,190.64 = 3,219.19 : x
  2. Step 2: Convert to fraction form
    5,212.09/7,190.64 = 3,219.19/x
  3. Step 3: Cross multiply
    5,212.09x = 7,190.64 × 3,219.19
  4. Step 4: Simplify right side
    5,212.09x = 23,148,036.38
  5. Step 5: Solve for x
    x = 23,148,036.38/5,212.09
  6. Step 6: Final answer
    x = 4,441.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.