Home / 2,290.11-3,434.35-808.95

Finding the Fourth Proportional to 2,290.11, 3,434.35 and 808.95

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Solution

The fourth proportional to 2,290.11, 3,434.35 and 808.95 is: 1,213.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,290.11 : 3,434.35 = 808.95 : x
  2. Step 2: Convert to fraction form
    2,290.11/3,434.35 = 808.95/x
  3. Step 3: Cross multiply
    2,290.11x = 3,434.35 × 808.95
  4. Step 4: Simplify right side
    2,290.11x = 2,778,217.43
  5. Step 5: Solve for x
    x = 2,778,217.43/2,290.11
  6. Step 6: Final answer
    x = 1,213.14

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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.