Home / 7,074.36-10,611.84-2,143.86

Finding the Fourth Proportional to 7,074.36, 10,611.84 and 2,143.86

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Solution

The fourth proportional to 7,074.36, 10,611.84 and 2,143.86 is: 3,215.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,074.36 : 10,611.84 = 2,143.86 : x
  2. Step 2: Convert to fraction form
    7,074.36/10,611.84 = 2,143.86/x
  3. Step 3: Cross multiply
    7,074.36x = 10,611.84 × 2,143.86
  4. Step 4: Simplify right side
    7,074.36x = 22,750,299.30
  5. Step 5: Solve for x
    x = 22,750,299.30/7,074.36
  6. Step 6: Final answer
    x = 3,215.88

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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.