Home / 7,409.05-11,107.77-3,709.42

Finding the Fourth Proportional to 7,409.05, 11,107.77 and 3,709.42

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Solution

The fourth proportional to 7,409.05, 11,107.77 and 3,709.42 is: 5,561.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,409.05 : 11,107.77 = 3,709.42 : x
  2. Step 2: Convert to fraction form
    7,409.05/11,107.77 = 3,709.42/x
  3. Step 3: Cross multiply
    7,409.05x = 11,107.77 × 3,709.42
  4. Step 4: Simplify right side
    7,409.05x = 41,203,342.51
  5. Step 5: Solve for x
    x = 41,203,342.51/7,409.05
  6. Step 6: Final answer
    x = 5,561.22

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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.