Home / 2,200.40-3,292.73-1,911.30

Finding the Fourth Proportional to 2,200.40, 3,292.73 and 1,911.30

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Solution

The fourth proportional to 2,200.40, 3,292.73 and 1,911.30 is: 2,860.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,200.40 : 3,292.73 = 1,911.30 : x
  2. Step 2: Convert to fraction form
    2,200.40/3,292.73 = 1,911.30/x
  3. Step 3: Cross multiply
    2,200.40x = 3,292.73 × 1,911.30
  4. Step 4: Simplify right side
    2,200.40x = 6,293,398.63
  5. Step 5: Solve for x
    x = 6,293,398.63/2,200.40
  6. Step 6: Final answer
    x = 2,860.12

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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.