Home / 3,540.35-4,884.31-2,281.31

Finding the Fourth Proportional to 3,540.35, 4,884.31 and 2,281.31

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Solution

The fourth proportional to 3,540.35, 4,884.31 and 2,281.31 is: 3,147.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,540.35 : 4,884.31 = 2,281.31 : x
  2. Step 2: Convert to fraction form
    3,540.35/4,884.31 = 2,281.31/x
  3. Step 3: Cross multiply
    3,540.35x = 4,884.31 × 2,281.31
  4. Step 4: Simplify right side
    3,540.35x = 11,142,625.25
  5. Step 5: Solve for x
    x = 11,142,625.25/3,540.35
  6. Step 6: Final answer
    x = 3,147.32

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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.