Home / 3,611-4,983.30-2,213.48

Finding the Fourth Proportional to 3,611, 4,983.30 and 2,213.48

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Solution

The fourth proportional to 3,611, 4,983.30 and 2,213.48 is: 3,054.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,611 : 4,983.30 = 2,213.48 : x
  2. Step 2: Convert to fraction form
    3,611/4,983.30 = 2,213.48/x
  3. Step 3: Cross multiply
    3,611x = 4,983.30 × 2,213.48
  4. Step 4: Simplify right side
    3,611x = 11,030,434.88
  5. Step 5: Solve for x
    x = 11,030,434.88/3,611
  6. Step 6: Final answer
    x = 3,054.68

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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.