Home / 3,779.15-5,216.33-2,207.61

Finding the Fourth Proportional to 3,779.15, 5,216.33 and 2,207.61

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Solution

The fourth proportional to 3,779.15, 5,216.33 and 2,207.61 is: 3,047.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,779.15 : 5,216.33 = 2,207.61 : x
  2. Step 2: Convert to fraction form
    3,779.15/5,216.33 = 2,207.61/x
  3. Step 3: Cross multiply
    3,779.15x = 5,216.33 × 2,207.61
  4. Step 4: Simplify right side
    3,779.15x = 11,515,627.79
  5. Step 5: Solve for x
    x = 11,515,627.79/3,779.15
  6. Step 6: Final answer
    x = 3,047.15

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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.