Home / 3,179.98-4,388.38-1,854.60

Finding the Fourth Proportional to 3,179.98, 4,388.38 and 1,854.60

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Solution

The fourth proportional to 3,179.98, 4,388.38 and 1,854.60 is: 2,559.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,179.98 : 4,388.38 = 1,854.60 : x
  2. Step 2: Convert to fraction form
    3,179.98/4,388.38 = 1,854.60/x
  3. Step 3: Cross multiply
    3,179.98x = 4,388.38 × 1,854.60
  4. Step 4: Simplify right side
    3,179.98x = 8,138,689.55
  5. Step 5: Solve for x
    x = 8,138,689.55/3,179.98
  6. Step 6: Final answer
    x = 2,559.35

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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.