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Finding the Fourth Proportional to 3,348.95, 5,015.86 and 1,786.19

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Solution

The fourth proportional to 3,348.95, 5,015.86 and 1,786.19 is: 2,675.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,348.95 : 5,015.86 = 1,786.19 : x
  2. Step 2: Convert to fraction form
    3,348.95/5,015.86 = 1,786.19/x
  3. Step 3: Cross multiply
    3,348.95x = 5,015.86 × 1,786.19
  4. Step 4: Simplify right side
    3,348.95x = 8,959,249.43
  5. Step 5: Solve for x
    x = 8,959,249.43/3,348.95
  6. Step 6: Final answer
    x = 2,675.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.