Home / 3,179.47-4,387.62-1,853.23

Finding the Fourth Proportional to 3,179.47, 4,387.62 and 1,853.23

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Solution

The fourth proportional to 3,179.47, 4,387.62 and 1,853.23 is: 2,557.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,179.47 : 4,387.62 = 1,853.23 : x
  2. Step 2: Convert to fraction form
    3,179.47/4,387.62 = 1,853.23/x
  3. Step 3: Cross multiply
    3,179.47x = 4,387.62 × 1,853.23
  4. Step 4: Simplify right side
    3,179.47x = 8,131,269.01
  5. Step 5: Solve for x
    x = 8,131,269.01/3,179.47
  6. Step 6: Final answer
    x = 2,557.43

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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.