Home / 3,122.62-4,309.55-1,927.54

Finding the Fourth Proportional to 3,122.62, 4,309.55 and 1,927.54

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Solution

The fourth proportional to 3,122.62, 4,309.55 and 1,927.54 is: 2,660.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,122.62 : 4,309.55 = 1,927.54 : x
  2. Step 2: Convert to fraction form
    3,122.62/4,309.55 = 1,927.54/x
  3. Step 3: Cross multiply
    3,122.62x = 4,309.55 × 1,927.54
  4. Step 4: Simplify right side
    3,122.62x = 8,306,830.01
  5. Step 5: Solve for x
    x = 8,306,830.01/3,122.62
  6. Step 6: Final answer
    x = 2,660.21

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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.