Home / 3,611.35-5,416.98-1,418.55

Finding the Fourth Proportional to 3,611.35, 5,416.98 and 1,418.55

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Solution

The fourth proportional to 3,611.35, 5,416.98 and 1,418.55 is: 2,127.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,611.35 : 5,416.98 = 1,418.55 : x
  2. Step 2: Convert to fraction form
    3,611.35/5,416.98 = 1,418.55/x
  3. Step 3: Cross multiply
    3,611.35x = 5,416.98 × 1,418.55
  4. Step 4: Simplify right side
    3,611.35x = 7,684,256.98
  5. Step 5: Solve for x
    x = 7,684,256.98/3,611.35
  6. Step 6: Final answer
    x = 2,127.81

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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.