Home / 3,911.34-5,397.93-2,418.87

Finding the Fourth Proportional to 3,911.34, 5,397.93 and 2,418.87

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Solution

The fourth proportional to 3,911.34, 5,397.93 and 2,418.87 is: 3,338.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,911.34 : 5,397.93 = 2,418.87 : x
  2. Step 2: Convert to fraction form
    3,911.34/5,397.93 = 2,418.87/x
  3. Step 3: Cross multiply
    3,911.34x = 5,397.93 × 2,418.87
  4. Step 4: Simplify right side
    3,911.34x = 13,056,890.94
  5. Step 5: Solve for x
    x = 13,056,890.94/3,911.34
  6. Step 6: Final answer
    x = 3,338.21

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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.