Home / 1,809.31-2,496.92-1,001.78

Finding the Fourth Proportional to 1,809.31, 2,496.92 and 1,001.78

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Solution

The fourth proportional to 1,809.31, 2,496.92 and 1,001.78 is: 1,382.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,809.31 : 2,496.92 = 1,001.78 : x
  2. Step 2: Convert to fraction form
    1,809.31/2,496.92 = 1,001.78/x
  3. Step 3: Cross multiply
    1,809.31x = 2,496.92 × 1,001.78
  4. Step 4: Simplify right side
    1,809.31x = 2,501,365.75
  5. Step 5: Solve for x
    x = 2,501,365.75/1,809.31
  6. Step 6: Final answer
    x = 1,382.50

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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.