Home / 7,213.08-10,821.44-2,215.70

Finding the Fourth Proportional to 7,213.08, 10,821.44 and 2,215.70

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Solution

The fourth proportional to 7,213.08, 10,821.44 and 2,215.70 is: 3,324.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,213.08 : 10,821.44 = 2,215.70 : x
  2. Step 2: Convert to fraction form
    7,213.08/10,821.44 = 2,215.70/x
  3. Step 3: Cross multiply
    7,213.08x = 10,821.44 × 2,215.70
  4. Step 4: Simplify right side
    7,213.08x = 23,977,056.62
  5. Step 5: Solve for x
    x = 23,977,056.62/7,213.08
  6. Step 6: Final answer
    x = 3,324.11

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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.