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Finding the Fourth Proportional to 3,289.88, 4,540.18 and 1,893.08

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Solution

The fourth proportional to 3,289.88, 4,540.18 and 1,893.08 is: 2,612.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,289.88 : 4,540.18 = 1,893.08 : x
  2. Step 2: Convert to fraction form
    3,289.88/4,540.18 = 1,893.08/x
  3. Step 3: Cross multiply
    3,289.88x = 4,540.18 × 1,893.08
  4. Step 4: Simplify right side
    3,289.88x = 8,594,923.95
  5. Step 5: Solve for x
    x = 8,594,923.95/3,289.88
  6. Step 6: Final answer
    x = 2,612.53

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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.