Home / 2,826.80-4,240.20-2,675.60

Finding the Fourth Proportional to 2,826.80, 4,240.20 and 2,675.60

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Solution

The fourth proportional to 2,826.80, 4,240.20 and 2,675.60 is: 4,013.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,826.80 : 4,240.20 = 2,675.60 : x
  2. Step 2: Convert to fraction form
    2,826.80/4,240.20 = 2,675.60/x
  3. Step 3: Cross multiply
    2,826.80x = 4,240.20 × 2,675.60
  4. Step 4: Simplify right side
    2,826.80x = 11,345,079.12
  5. Step 5: Solve for x
    x = 11,345,079.12/2,826.80
  6. Step 6: Final answer
    x = 4,013.40

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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.