Home / 5,611.94-8,421.59-2,149.19

Finding the Fourth Proportional to 5,611.94, 8,421.59 and 2,149.19

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Solution

The fourth proportional to 5,611.94, 8,421.59 and 2,149.19 is: 3,225.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,611.94 : 8,421.59 = 2,149.19 : x
  2. Step 2: Convert to fraction form
    5,611.94/8,421.59 = 2,149.19/x
  3. Step 3: Cross multiply
    5,611.94x = 8,421.59 × 2,149.19
  4. Step 4: Simplify right side
    5,611.94x = 18,099,597.01
  5. Step 5: Solve for x
    x = 18,099,597.01/5,611.94
  6. Step 6: Final answer
    x = 3,225.19

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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.