Home / 5,611.86-8,418.18-2,101.80

Finding the Fourth Proportional to 5,611.86, 8,418.18 and 2,101.80

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Solution

The fourth proportional to 5,611.86, 8,418.18 and 2,101.80 is: 3,152.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,611.86 : 8,418.18 = 2,101.80 : x
  2. Step 2: Convert to fraction form
    5,611.86/8,418.18 = 2,101.80/x
  3. Step 3: Cross multiply
    5,611.86x = 8,418.18 × 2,101.80
  4. Step 4: Simplify right side
    5,611.86x = 17,693,330.72
  5. Step 5: Solve for x
    x = 17,693,330.72/5,611.86
  6. Step 6: Final answer
    x = 3,152.85

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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.