Home / 3,945.14-5,436.06-2,684.00

Finding the Fourth Proportional to 3,945.14, 5,436.06 and 2,684.00

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Solution

The fourth proportional to 3,945.14, 5,436.06 and 2,684.00 is: 3,698.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,945.14 : 5,436.06 = 2,684.00 : x
  2. Step 2: Convert to fraction form
    3,945.14/5,436.06 = 2,684.00/x
  3. Step 3: Cross multiply
    3,945.14x = 5,436.06 × 2,684.00
  4. Step 4: Simplify right side
    3,945.14x = 14,590,388.57
  5. Step 5: Solve for x
    x = 14,590,388.57/3,945.14
  6. Step 6: Final answer
    x = 3,698.32

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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.