Home / 2,905.25-4,009.79-1,663.25

Finding the Fourth Proportional to 2,905.25, 4,009.79 and 1,663.25

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Solution

The fourth proportional to 2,905.25, 4,009.79 and 1,663.25 is: 2,295.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,905.25 : 4,009.79 = 1,663.25 : x
  2. Step 2: Convert to fraction form
    2,905.25/4,009.79 = 1,663.25/x
  3. Step 3: Cross multiply
    2,905.25x = 4,009.79 × 1,663.25
  4. Step 4: Simplify right side
    2,905.25x = 6,669,274.90
  5. Step 5: Solve for x
    x = 6,669,274.90/2,905.25
  6. Step 6: Final answer
    x = 2,295.59

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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.