Home / 3,969.07-5,481.80-2,707.96

Finding the Fourth Proportional to 3,969.07, 5,481.80 and 2,707.96

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Solution

The fourth proportional to 3,969.07, 5,481.80 and 2,707.96 is: 3,740.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,969.07 : 5,481.80 = 2,707.96 : x
  2. Step 2: Convert to fraction form
    3,969.07/5,481.80 = 2,707.96/x
  3. Step 3: Cross multiply
    3,969.07x = 5,481.80 × 2,707.96
  4. Step 4: Simplify right side
    3,969.07x = 14,844,495.13
  5. Step 5: Solve for x
    x = 14,844,495.13/3,969.07
  6. Step 6: Final answer
    x = 3,740.04

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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.