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Finding the Fourth Proportional to 3,866.34, 5,335.47 and 2,097.91

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Solution

The fourth proportional to 3,866.34, 5,335.47 and 2,097.91 is: 2,895.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,866.34 : 5,335.47 = 2,097.91 : x
  2. Step 2: Convert to fraction form
    3,866.34/5,335.47 = 2,097.91/x
  3. Step 3: Cross multiply
    3,866.34x = 5,335.47 × 2,097.91
  4. Step 4: Simplify right side
    3,866.34x = 11,193,309.19
  5. Step 5: Solve for x
    x = 11,193,309.19/3,866.34
  6. Step 6: Final answer
    x = 2,895.07

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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.