Home / 2,763.08-3,813.86-2,207.42

Finding the Fourth Proportional to 2,763.08, 3,813.86 and 2,207.42

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Solution

The fourth proportional to 2,763.08, 3,813.86 and 2,207.42 is: 3,046.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,763.08 : 3,813.86 = 2,207.42 : x
  2. Step 2: Convert to fraction form
    2,763.08/3,813.86 = 2,207.42/x
  3. Step 3: Cross multiply
    2,763.08x = 3,813.86 × 2,207.42
  4. Step 4: Simplify right side
    2,763.08x = 8,418,779.80
  5. Step 5: Solve for x
    x = 8,418,779.80/2,763.08
  6. Step 6: Final answer
    x = 3,046.88

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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.