Home / 1,822.12-2,531.38-1,805.01

Finding the Fourth Proportional to 1,822.12, 2,531.38 and 1,805.01

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Solution

The fourth proportional to 1,822.12, 2,531.38 and 1,805.01 is: 2,507.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,822.12 : 2,531.38 = 1,805.01 : x
  2. Step 2: Convert to fraction form
    1,822.12/2,531.38 = 1,805.01/x
  3. Step 3: Cross multiply
    1,822.12x = 2,531.38 × 1,805.01
  4. Step 4: Simplify right side
    1,822.12x = 4,569,166.21
  5. Step 5: Solve for x
    x = 4,569,166.21/1,822.12
  6. Step 6: Final answer
    x = 2,507.61

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.