Home / 7,147.21-10,722.54-2,216.95

Finding the Fourth Proportional to 7,147.21, 10,722.54 and 2,216.95

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Solution

The fourth proportional to 7,147.21, 10,722.54 and 2,216.95 is: 3,325.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,147.21 : 10,722.54 = 2,216.95 : x
  2. Step 2: Convert to fraction form
    7,147.21/10,722.54 = 2,216.95/x
  3. Step 3: Cross multiply
    7,147.21x = 10,722.54 × 2,216.95
  4. Step 4: Simplify right side
    7,147.21x = 23,771,335.05
  5. Step 5: Solve for x
    x = 23,771,335.05/7,147.21
  6. Step 6: Final answer
    x = 3,325.96

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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.