Home / 4,919.24-7,376.44-2,145.40

Finding the Fourth Proportional to 4,919.24, 7,376.44 and 2,145.40

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Solution

The fourth proportional to 4,919.24, 7,376.44 and 2,145.40 is: 3,217.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,919.24 : 7,376.44 = 2,145.40 : x
  2. Step 2: Convert to fraction form
    4,919.24/7,376.44 = 2,145.40/x
  3. Step 3: Cross multiply
    4,919.24x = 7,376.44 × 2,145.40
  4. Step 4: Simplify right side
    4,919.24x = 15,825,414.38
  5. Step 5: Solve for x
    x = 15,825,414.38/4,919.24
  6. Step 6: Final answer
    x = 3,217.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.