Home / 2,919.81-4,049.99-2,814.74

Finding the Fourth Proportional to 2,919.81, 4,049.99 and 2,814.74

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Solution

The fourth proportional to 2,919.81, 4,049.99 and 2,814.74 is: 3,904.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,919.81 : 4,049.99 = 2,814.74 : x
  2. Step 2: Convert to fraction form
    2,919.81/4,049.99 = 2,814.74/x
  3. Step 3: Cross multiply
    2,919.81x = 4,049.99 × 2,814.74
  4. Step 4: Simplify right side
    2,919.81x = 11,399,634.53
  5. Step 5: Solve for x
    x = 11,399,634.53/2,919.81
  6. Step 6: Final answer
    x = 3,904.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.