Home / 3,025.80-4,176.90-2,863.80

Finding the Fourth Proportional to 3,025.80, 4,176.90 and 2,863.80

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Solution

The fourth proportional to 3,025.80, 4,176.90 and 2,863.80 is: 3,953.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,025.80 : 4,176.90 = 2,863.80 : x
  2. Step 2: Convert to fraction form
    3,025.80/4,176.90 = 2,863.80/x
  3. Step 3: Cross multiply
    3,025.80x = 4,176.90 × 2,863.80
  4. Step 4: Simplify right side
    3,025.80x = 11,961,806.22
  5. Step 5: Solve for x
    x = 11,961,806.22/3,025.80
  6. Step 6: Final answer
    x = 3,953.27

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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.