Home / 3,874.88-5,347.30-2,106.48

Finding the Fourth Proportional to 3,874.88, 5,347.30 and 2,106.48

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Solution

The fourth proportional to 3,874.88, 5,347.30 and 2,106.48 is: 2,906.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,874.88 : 5,347.30 = 2,106.48 : x
  2. Step 2: Convert to fraction form
    3,874.88/5,347.30 = 2,106.48/x
  3. Step 3: Cross multiply
    3,874.88x = 5,347.30 × 2,106.48
  4. Step 4: Simplify right side
    3,874.88x = 11,263,980.50
  5. Step 5: Solve for x
    x = 11,263,980.50/3,874.88
  6. Step 6: Final answer
    x = 2,906.92

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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.