Home / 3,213.64-4,816.80-2,431.09

Finding the Fourth Proportional to 3,213.64, 4,816.80 and 2,431.09

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Solution

The fourth proportional to 3,213.64, 4,816.80 and 2,431.09 is: 3,643.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,213.64 : 4,816.80 = 2,431.09 : x
  2. Step 2: Convert to fraction form
    3,213.64/4,816.80 = 2,431.09/x
  3. Step 3: Cross multiply
    3,213.64x = 4,816.80 × 2,431.09
  4. Step 4: Simplify right side
    3,213.64x = 11,710,074.31
  5. Step 5: Solve for x
    x = 11,710,074.31/3,213.64
  6. Step 6: Final answer
    x = 3,643.87

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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.