Home / 5,161.16-7,122.38-2,922.81

Finding the Fourth Proportional to 5,161.16, 7,122.38 and 2,922.81

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Solution

The fourth proportional to 5,161.16, 7,122.38 and 2,922.81 is: 4,033.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,161.16 : 7,122.38 = 2,922.81 : x
  2. Step 2: Convert to fraction form
    5,161.16/7,122.38 = 2,922.81/x
  3. Step 3: Cross multiply
    5,161.16x = 7,122.38 × 2,922.81
  4. Step 4: Simplify right side
    5,161.16x = 20,817,348.87
  5. Step 5: Solve for x
    x = 20,817,348.87/5,161.16
  6. Step 6: Final answer
    x = 4,033.47

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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.