Home / 3,122.48-4,309.23-1,796.51

Finding the Fourth Proportional to 3,122.48, 4,309.23 and 1,796.51

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Solution

The fourth proportional to 3,122.48, 4,309.23 and 1,796.51 is: 2,479.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,122.48 : 4,309.23 = 1,796.51 : x
  2. Step 2: Convert to fraction form
    3,122.48/4,309.23 = 1,796.51/x
  3. Step 3: Cross multiply
    3,122.48x = 4,309.23 × 1,796.51
  4. Step 4: Simplify right side
    3,122.48x = 7,741,592.30
  5. Step 5: Solve for x
    x = 7,741,592.30/3,122.48
  6. Step 6: Final answer
    x = 2,479.31

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1.5x scale

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.