Home / 5,403.69-8,107.65-2,116.22

Finding the Fourth Proportional to 5,403.69, 8,107.65 and 2,116.22

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Solution

The fourth proportional to 5,403.69, 8,107.65 and 2,116.22 is: 3,175.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,403.69 : 8,107.65 = 2,116.22 : x
  2. Step 2: Convert to fraction form
    5,403.69/8,107.65 = 2,116.22/x
  3. Step 3: Cross multiply
    5,403.69x = 8,107.65 × 2,116.22
  4. Step 4: Simplify right side
    5,403.69x = 17,157,530.54
  5. Step 5: Solve for x
    x = 17,157,530.54/5,403.69
  6. Step 6: Final answer
    x = 3,175.15

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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.