Home / 2,199.48-3,296.90-811.93

Finding the Fourth Proportional to 2,199.48, 3,296.90 and 811.93

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Solution

The fourth proportional to 2,199.48, 3,296.90 and 811.93 is: 1,217.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,199.48 : 3,296.90 = 811.93 : x
  2. Step 2: Convert to fraction form
    2,199.48/3,296.90 = 811.93/x
  3. Step 3: Cross multiply
    2,199.48x = 3,296.90 × 811.93
  4. Step 4: Simplify right side
    2,199.48x = 2,676,852.02
  5. Step 5: Solve for x
    x = 2,676,852.02/2,199.48
  6. Step 6: Final answer
    x = 1,217.04

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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.