Home / 2,758.08-4,139.84-2,025.60

Finding the Fourth Proportional to 2,758.08, 4,139.84 and 2,025.60

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Solution

The fourth proportional to 2,758.08, 4,139.84 and 2,025.60 is: 3,040.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,758.08 : 4,139.84 = 2,025.60 : x
  2. Step 2: Convert to fraction form
    2,758.08/4,139.84 = 2,025.60/x
  3. Step 3: Cross multiply
    2,758.08x = 4,139.84 × 2,025.60
  4. Step 4: Simplify right side
    2,758.08x = 8,385,659.90
  5. Step 5: Solve for x
    x = 8,385,659.90/2,758.08
  6. Step 6: Final answer
    x = 3,040.40

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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.