Home / 2,939.88-4,407.26-1,643.24

Finding the Fourth Proportional to 2,939.88, 4,407.26 and 1,643.24

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Solution

The fourth proportional to 2,939.88, 4,407.26 and 1,643.24 is: 2,463.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,939.88 : 4,407.26 = 1,643.24 : x
  2. Step 2: Convert to fraction form
    2,939.88/4,407.26 = 1,643.24/x
  3. Step 3: Cross multiply
    2,939.88x = 4,407.26 × 1,643.24
  4. Step 4: Simplify right side
    2,939.88x = 7,242,185.92
  5. Step 5: Solve for x
    x = 7,242,185.92/2,939.88
  6. Step 6: Final answer
    x = 2,463.43

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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.