Home / 7,072.76-10,611.06-2,142.56

Finding the Fourth Proportional to 7,072.76, 10,611.06 and 2,142.56

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Solution

The fourth proportional to 7,072.76, 10,611.06 and 2,142.56 is: 3,214.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,072.76 : 10,611.06 = 2,142.56 : x
  2. Step 2: Convert to fraction form
    7,072.76/10,611.06 = 2,142.56/x
  3. Step 3: Cross multiply
    7,072.76x = 10,611.06 × 2,142.56
  4. Step 4: Simplify right side
    7,072.76x = 22,734,832.71
  5. Step 5: Solve for x
    x = 22,734,832.71/7,072.76
  6. Step 6: Final answer
    x = 3,214.42

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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.