Home / 3,145.27-4,338.47-2,025.80

Finding the Fourth Proportional to 3,145.27, 4,338.47 and 2,025.80

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Solution

The fourth proportional to 3,145.27, 4,338.47 and 2,025.80 is: 2,794.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,145.27 : 4,338.47 = 2,025.80 : x
  2. Step 2: Convert to fraction form
    3,145.27/4,338.47 = 2,025.80/x
  3. Step 3: Cross multiply
    3,145.27x = 4,338.47 × 2,025.80
  4. Step 4: Simplify right side
    3,145.27x = 8,788,872.53
  5. Step 5: Solve for x
    x = 8,788,872.53/3,145.27
  6. Step 6: Final answer
    x = 2,794.31

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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.