Home / 3,847.45-5,309.87-2,356.36

Finding the Fourth Proportional to 3,847.45, 5,309.87 and 2,356.36

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Solution

The fourth proportional to 3,847.45, 5,309.87 and 2,356.36 is: 3,252.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,847.45 : 5,309.87 = 2,356.36 : x
  2. Step 2: Convert to fraction form
    3,847.45/5,309.87 = 2,356.36/x
  3. Step 3: Cross multiply
    3,847.45x = 5,309.87 × 2,356.36
  4. Step 4: Simplify right side
    3,847.45x = 12,511,965.27
  5. Step 5: Solve for x
    x = 12,511,965.27/3,847.45
  6. Step 6: Final answer
    x = 3,252.02

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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.