Home / 2,913.78-4,022.22-2,074.62

Finding the Fourth Proportional to 2,913.78, 4,022.22 and 2,074.62

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Solution

The fourth proportional to 2,913.78, 4,022.22 and 2,074.62 is: 2,863.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,913.78 : 4,022.22 = 2,074.62 : x
  2. Step 2: Convert to fraction form
    2,913.78/4,022.22 = 2,074.62/x
  3. Step 3: Cross multiply
    2,913.78x = 4,022.22 × 2,074.62
  4. Step 4: Simplify right side
    2,913.78x = 8,344,578.06
  5. Step 5: Solve for x
    x = 8,344,578.06/2,913.78
  6. Step 6: Final answer
    x = 2,863.83

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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.