Home / 2,208.20-3,312.26-891.93

Finding the Fourth Proportional to 2,208.20, 3,312.26 and 891.93

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Solution

The fourth proportional to 2,208.20, 3,312.26 and 891.93 is: 1,337.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,208.20 : 3,312.26 = 891.93 : x
  2. Step 2: Convert to fraction form
    2,208.20/3,312.26 = 891.93/x
  3. Step 3: Cross multiply
    2,208.20x = 3,312.26 × 891.93
  4. Step 4: Simplify right side
    2,208.20x = 2,954,304.06
  5. Step 5: Solve for x
    x = 2,954,304.06/2,208.20
  6. Step 6: Final answer
    x = 1,337.88

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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.