Home / 1,950.26-2,690.36-1,320.82

Finding the Fourth Proportional to 1,950.26, 2,690.36 and 1,320.82

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Solution

The fourth proportional to 1,950.26, 2,690.36 and 1,320.82 is: 1,822.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,950.26 : 2,690.36 = 1,320.82 : x
  2. Step 2: Convert to fraction form
    1,950.26/2,690.36 = 1,320.82/x
  3. Step 3: Cross multiply
    1,950.26x = 2,690.36 × 1,320.82
  4. Step 4: Simplify right side
    1,950.26x = 3,553,481.30
  5. Step 5: Solve for x
    x = 3,553,481.30/1,950.26
  6. Step 6: Final answer
    x = 1,822.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.