Home / 3,218.32-4,435.21-2,579.53

Finding the Fourth Proportional to 3,218.32, 4,435.21 and 2,579.53

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Solution

The fourth proportional to 3,218.32, 4,435.21 and 2,579.53 is: 3,554.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,218.32 : 4,435.21 = 2,579.53 : x
  2. Step 2: Convert to fraction form
    3,218.32/4,435.21 = 2,579.53/x
  3. Step 3: Cross multiply
    3,218.32x = 4,435.21 × 2,579.53
  4. Step 4: Simplify right side
    3,218.32x = 11,440,757.25
  5. Step 5: Solve for x
    x = 11,440,757.25/3,218.32
  6. Step 6: Final answer
    x = 3,554.88

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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.