Home / 1,691.07-2,533.70-1,519.88

Finding the Fourth Proportional to 1,691.07, 2,533.70 and 1,519.88

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Solution

The fourth proportional to 1,691.07, 2,533.70 and 1,519.88 is: 2,277.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,691.07 : 2,533.70 = 1,519.88 : x
  2. Step 2: Convert to fraction form
    1,691.07/2,533.70 = 1,519.88/x
  3. Step 3: Cross multiply
    1,691.07x = 2,533.70 × 1,519.88
  4. Step 4: Simplify right side
    1,691.07x = 3,850,919.96
  5. Step 5: Solve for x
    x = 3,850,919.96/1,691.07
  6. Step 6: Final answer
    x = 2,277.21

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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.