Home / 3,779.52-5,215.68-2,207.61

Finding the Fourth Proportional to 3,779.52, 5,215.68 and 2,207.61

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Solution

The fourth proportional to 3,779.52, 5,215.68 and 2,207.61 is: 3,046.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,779.52 : 5,215.68 = 2,207.61 : x
  2. Step 2: Convert to fraction form
    3,779.52/5,215.68 = 2,207.61/x
  3. Step 3: Cross multiply
    3,779.52x = 5,215.68 × 2,207.61
  4. Step 4: Simplify right side
    3,779.52x = 11,514,187.32
  5. Step 5: Solve for x
    x = 11,514,187.32/3,779.52
  6. Step 6: Final answer
    x = 3,046.47

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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.