Home / 1,808.40-2,708.28-1,229.52

Finding the Fourth Proportional to 1,808.40, 2,708.28 and 1,229.52

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Solution

The fourth proportional to 1,808.40, 2,708.28 and 1,229.52 is: 1,841.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,808.40 : 2,708.28 = 1,229.52 : x
  2. Step 2: Convert to fraction form
    1,808.40/2,708.28 = 1,229.52/x
  3. Step 3: Cross multiply
    1,808.40x = 2,708.28 × 1,229.52
  4. Step 4: Simplify right side
    1,808.40x = 3,329,884.43
  5. Step 5: Solve for x
    x = 3,329,884.43/1,808.40
  6. Step 6: Final answer
    x = 1,841.34

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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.