Home / 7,142.20-10,714.44-2,210.68

Finding the Fourth Proportional to 7,142.20, 10,714.44 and 2,210.68

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Solution

The fourth proportional to 7,142.20, 10,714.44 and 2,210.68 is: 3,316.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,142.20 : 10,714.44 = 2,210.68 : x
  2. Step 2: Convert to fraction form
    7,142.20/10,714.44 = 2,210.68/x
  3. Step 3: Cross multiply
    7,142.20x = 10,714.44 × 2,210.68
  4. Step 4: Simplify right side
    7,142.20x = 23,686,198.22
  5. Step 5: Solve for x
    x = 23,686,198.22/7,142.20
  6. Step 6: Final answer
    x = 3,316.37

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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.