Home / 3,247.25-4,480.83-1,920.47

Finding the Fourth Proportional to 3,247.25, 4,480.83 and 1,920.47

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Solution

The fourth proportional to 3,247.25, 4,480.83 and 1,920.47 is: 2,650.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,247.25 : 4,480.83 = 1,920.47 : x
  2. Step 2: Convert to fraction form
    3,247.25/4,480.83 = 1,920.47/x
  3. Step 3: Cross multiply
    3,247.25x = 4,480.83 × 1,920.47
  4. Step 4: Simplify right side
    3,247.25x = 8,605,277.19
  5. Step 5: Solve for x
    x = 8,605,277.19/3,247.25
  6. Step 6: Final answer
    x = 2,650.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.