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Finding the Fourth Proportional to 3,886.58, 5,363.51 and 2,207.94

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Solution

The fourth proportional to 3,886.58, 5,363.51 and 2,207.94 is: 3,046.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,886.58 : 5,363.51 = 2,207.94 : x
  2. Step 2: Convert to fraction form
    3,886.58/5,363.51 = 2,207.94/x
  3. Step 3: Cross multiply
    3,886.58x = 5,363.51 × 2,207.94
  4. Step 4: Simplify right side
    3,886.58x = 11,842,308.27
  5. Step 5: Solve for x
    x = 11,842,308.27/3,886.58
  6. Step 6: Final answer
    x = 3,046.97

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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.