Home / 2,809.24-4,211.84-1,327.64

Finding the Fourth Proportional to 2,809.24, 4,211.84 and 1,327.64

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Solution

The fourth proportional to 2,809.24, 4,211.84 and 1,327.64 is: 1,990.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,809.24 : 4,211.84 = 1,327.64 : x
  2. Step 2: Convert to fraction form
    2,809.24/4,211.84 = 1,327.64/x
  3. Step 3: Cross multiply
    2,809.24x = 4,211.84 × 1,327.64
  4. Step 4: Simplify right side
    2,809.24x = 5,591,807.26
  5. Step 5: Solve for x
    x = 5,591,807.26/2,809.24
  6. Step 6: Final answer
    x = 1,990.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.