Home / 5,212.14-7,192.81-2,854.22

Finding the Fourth Proportional to 5,212.14, 7,192.81 and 2,854.22

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Solution

The fourth proportional to 5,212.14, 7,192.81 and 2,854.22 is: 3,938.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,212.14 : 7,192.81 = 2,854.22 : x
  2. Step 2: Convert to fraction form
    5,212.14/7,192.81 = 2,854.22/x
  3. Step 3: Cross multiply
    5,212.14x = 7,192.81 × 2,854.22
  4. Step 4: Simplify right side
    5,212.14x = 20,529,862.16
  5. Step 5: Solve for x
    x = 20,529,862.16/5,212.14
  6. Step 6: Final answer
    x = 3,938.85

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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.