Home / 5,403.09-8,107.37-2,116.32

Finding the Fourth Proportional to 5,403.09, 8,107.37 and 2,116.32

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Solution

The fourth proportional to 5,403.09, 8,107.37 and 2,116.32 is: 3,175.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,403.09 : 8,107.37 = 2,116.32 : x
  2. Step 2: Convert to fraction form
    5,403.09/8,107.37 = 2,116.32/x
  3. Step 3: Cross multiply
    5,403.09x = 8,107.37 × 2,116.32
  4. Step 4: Simplify right side
    5,403.09x = 17,157,789.28
  5. Step 5: Solve for x
    x = 17,157,789.28/5,403.09
  6. Step 6: Final answer
    x = 3,175.55

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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.