Home / 5,611.20-8,400.18-4,156.86

Finding the Fourth Proportional to 5,611.20, 8,400.18 and 4,156.86

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Solution

The fourth proportional to 5,611.20, 8,400.18 and 4,156.86 is: 6,222.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,611.20 : 8,400.18 = 4,156.86 : x
  2. Step 2: Convert to fraction form
    5,611.20/8,400.18 = 4,156.86/x
  3. Step 3: Cross multiply
    5,611.20x = 8,400.18 × 4,156.86
  4. Step 4: Simplify right side
    5,611.20x = 34,918,372.23
  5. Step 5: Solve for x
    x = 34,918,372.23/5,611.20
  6. Step 6: Final answer
    x = 6,222.98

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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.