Home / 3,886.45-5,363.49-2,207.77

Finding the Fourth Proportional to 3,886.45, 5,363.49 and 2,207.77

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Solution

The fourth proportional to 3,886.45, 5,363.49 and 2,207.77 is: 3,046.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,886.45 : 5,363.49 = 2,207.77 : x
  2. Step 2: Convert to fraction form
    3,886.45/5,363.49 = 2,207.77/x
  3. Step 3: Cross multiply
    3,886.45x = 5,363.49 × 2,207.77
  4. Step 4: Simplify right side
    3,886.45x = 11,841,352.32
  5. Step 5: Solve for x
    x = 11,841,352.32/3,886.45
  6. Step 6: Final answer
    x = 3,046.83

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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.