Home / 2,821.74-4,230.09-1,434.30

Finding the Fourth Proportional to 2,821.74, 4,230.09 and 1,434.30

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Solution

The fourth proportional to 2,821.74, 4,230.09 and 1,434.30 is: 2,150.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,821.74 : 4,230.09 = 1,434.30 : x
  2. Step 2: Convert to fraction form
    2,821.74/4,230.09 = 1,434.30/x
  3. Step 3: Cross multiply
    2,821.74x = 4,230.09 × 1,434.30
  4. Step 4: Simplify right side
    2,821.74x = 6,067,218.09
  5. Step 5: Solve for x
    x = 6,067,218.09/2,821.74
  6. Step 6: Final answer
    x = 2,150.17

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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.