Home / 3,448.32-5,172.87-1,107.51

Finding the Fourth Proportional to 3,448.32, 5,172.87 and 1,107.51

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Solution

The fourth proportional to 3,448.32, 5,172.87 and 1,107.51 is: 1,661.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,448.32 : 5,172.87 = 1,107.51 : x
  2. Step 2: Convert to fraction form
    3,448.32/5,172.87 = 1,107.51/x
  3. Step 3: Cross multiply
    3,448.32x = 5,172.87 × 1,107.51
  4. Step 4: Simplify right side
    3,448.32x = 5,729,005.25
  5. Step 5: Solve for x
    x = 5,729,005.25/3,448.32
  6. Step 6: Final answer
    x = 1,661.39

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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.