Home / 3,179.61-4,387.75-1,853.37

Finding the Fourth Proportional to 3,179.61, 4,387.75 and 1,853.37

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Solution

The fourth proportional to 3,179.61, 4,387.75 and 1,853.37 is: 2,557.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,179.61 : 4,387.75 = 1,853.37 : x
  2. Step 2: Convert to fraction form
    3,179.61/4,387.75 = 1,853.37/x
  3. Step 3: Cross multiply
    3,179.61x = 4,387.75 × 1,853.37
  4. Step 4: Simplify right side
    3,179.61x = 8,132,124.22
  5. Step 5: Solve for x
    x = 8,132,124.22/3,179.61
  6. Step 6: Final answer
    x = 2,557.59

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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.