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Finding the Fourth Proportional to 3,838.87, 5,293.98 and 3,555.91

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Solution

The fourth proportional to 3,838.87, 5,293.98 and 3,555.91 is: 4,903.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,838.87 : 5,293.98 = 3,555.91 : x
  2. Step 2: Convert to fraction form
    3,838.87/5,293.98 = 3,555.91/x
  3. Step 3: Cross multiply
    3,838.87x = 5,293.98 × 3,555.91
  4. Step 4: Simplify right side
    3,838.87x = 18,824,903.19
  5. Step 5: Solve for x
    x = 18,824,903.19/3,838.87
  6. Step 6: Final answer
    x = 4,903.76

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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.