Home / 2,199.44-3,296.18-811.47

Finding the Fourth Proportional to 2,199.44, 3,296.18 and 811.47

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Solution

The fourth proportional to 2,199.44, 3,296.18 and 811.47 is: 1,216.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,199.44 : 3,296.18 = 811.47 : x
  2. Step 2: Convert to fraction form
    2,199.44/3,296.18 = 811.47/x
  3. Step 3: Cross multiply
    2,199.44x = 3,296.18 × 811.47
  4. Step 4: Simplify right side
    2,199.44x = 2,674,753.21
  5. Step 5: Solve for x
    x = 2,674,753.21/2,199.44
  6. Step 6: Final answer
    x = 1,216.11

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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.