Home / 1,819.79-2,726.09-1,691.64

Finding the Fourth Proportional to 1,819.79, 2,726.09 and 1,691.64

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Solution

The fourth proportional to 1,819.79, 2,726.09 and 1,691.64 is: 2,534.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,819.79 : 2,726.09 = 1,691.64 : x
  2. Step 2: Convert to fraction form
    1,819.79/2,726.09 = 1,691.64/x
  3. Step 3: Cross multiply
    1,819.79x = 2,726.09 × 1,691.64
  4. Step 4: Simplify right side
    1,819.79x = 4,611,564.47
  5. Step 5: Solve for x
    x = 4,611,564.47/1,819.79
  6. Step 6: Final answer
    x = 2,534.13

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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.