Home / 3,921.32-5,410.98-2,327.40

Finding the Fourth Proportional to 3,921.32, 5,410.98 and 2,327.40

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Solution

The fourth proportional to 3,921.32, 5,410.98 and 2,327.40 is: 3,211.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,921.32 : 5,410.98 = 2,327.40 : x
  2. Step 2: Convert to fraction form
    3,921.32/5,410.98 = 2,327.40/x
  3. Step 3: Cross multiply
    3,921.32x = 5,410.98 × 2,327.40
  4. Step 4: Simplify right side
    3,921.32x = 12,593,514.85
  5. Step 5: Solve for x
    x = 12,593,514.85/3,921.32
  6. Step 6: Final answer
    x = 3,211.55

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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.