Home / 3,007.28-4,148.82-2,122.76

Finding the Fourth Proportional to 3,007.28, 4,148.82 and 2,122.76

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Solution

The fourth proportional to 3,007.28, 4,148.82 and 2,122.76 is: 2,928.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,007.28 : 4,148.82 = 2,122.76 : x
  2. Step 2: Convert to fraction form
    3,007.28/4,148.82 = 2,122.76/x
  3. Step 3: Cross multiply
    3,007.28x = 4,148.82 × 2,122.76
  4. Step 4: Simplify right side
    3,007.28x = 8,806,949.14
  5. Step 5: Solve for x
    x = 8,806,949.14/3,007.28
  6. Step 6: Final answer
    x = 2,928.54

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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.