Home / 3,808.47-5,257.31-2,316.87

Finding the Fourth Proportional to 3,808.47, 5,257.31 and 2,316.87

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Solution

The fourth proportional to 3,808.47, 5,257.31 and 2,316.87 is: 3,198.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,808.47 : 5,257.31 = 2,316.87 : x
  2. Step 2: Convert to fraction form
    3,808.47/5,257.31 = 2,316.87/x
  3. Step 3: Cross multiply
    3,808.47x = 5,257.31 × 2,316.87
  4. Step 4: Simplify right side
    3,808.47x = 12,180,503.82
  5. Step 5: Solve for x
    x = 12,180,503.82/3,808.47
  6. Step 6: Final answer
    x = 3,198.27

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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.