Home / 5,161.25-7,122.06-2,892.54

Finding the Fourth Proportional to 5,161.25, 7,122.06 and 2,892.54

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Solution

The fourth proportional to 5,161.25, 7,122.06 and 2,892.54 is: 3,991.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,161.25 : 7,122.06 = 2,892.54 : x
  2. Step 2: Convert to fraction form
    5,161.25/7,122.06 = 2,892.54/x
  3. Step 3: Cross multiply
    5,161.25x = 7,122.06 × 2,892.54
  4. Step 4: Simplify right side
    5,161.25x = 20,600,870.14
  5. Step 5: Solve for x
    x = 20,600,870.14/5,161.25
  6. Step 6: Final answer
    x = 3,991.45

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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.