Home / 3,969.14-5,477.45-2,477.07

Finding the Fourth Proportional to 3,969.14, 5,477.45 and 2,477.07

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Solution

The fourth proportional to 3,969.14, 5,477.45 and 2,477.07 is: 3,418.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,969.14 : 5,477.45 = 2,477.07 : x
  2. Step 2: Convert to fraction form
    3,969.14/5,477.45 = 2,477.07/x
  3. Step 3: Cross multiply
    3,969.14x = 5,477.45 × 2,477.07
  4. Step 4: Simplify right side
    3,969.14x = 13,568,014.69
  5. Step 5: Solve for x
    x = 13,568,014.69/3,969.14
  6. Step 6: Final answer
    x = 3,418.38

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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.