Home / 3,874.88-5,347.32-2,106.56

Finding the Fourth Proportional to 3,874.88, 5,347.32 and 2,106.56

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Solution

The fourth proportional to 3,874.88, 5,347.32 and 2,106.56 is: 2,907.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,874.88 : 5,347.32 = 2,106.56 : x
  2. Step 2: Convert to fraction form
    3,874.88/5,347.32 = 2,106.56/x
  3. Step 3: Cross multiply
    3,874.88x = 5,347.32 × 2,106.56
  4. Step 4: Simplify right side
    3,874.88x = 11,264,450.42
  5. Step 5: Solve for x
    x = 11,264,450.42/3,874.88
  6. Step 6: Final answer
    x = 2,907.04

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1.5x scale

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.