Home / 3,545.09-5,317.32-1,080.49

Finding the Fourth Proportional to 3,545.09, 5,317.32 and 1,080.49

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Solution

The fourth proportional to 3,545.09, 5,317.32 and 1,080.49 is: 1,620.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,545.09 : 5,317.32 = 1,080.49 : x
  2. Step 2: Convert to fraction form
    3,545.09/5,317.32 = 1,080.49/x
  3. Step 3: Cross multiply
    3,545.09x = 5,317.32 × 1,080.49
  4. Step 4: Simplify right side
    3,545.09x = 5,745,305.68
  5. Step 5: Solve for x
    x = 5,745,305.68/3,545.09
  6. Step 6: Final answer
    x = 1,620.64

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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.