Home / 3,317.94-4,578.98-1,920.69

Finding the Fourth Proportional to 3,317.94, 4,578.98 and 1,920.69

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Solution

The fourth proportional to 3,317.94, 4,578.98 and 1,920.69 is: 2,650.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,317.94 : 4,578.98 = 1,920.69 : x
  2. Step 2: Convert to fraction form
    3,317.94/4,578.98 = 1,920.69/x
  3. Step 3: Cross multiply
    3,317.94x = 4,578.98 × 1,920.69
  4. Step 4: Simplify right side
    3,317.94x = 8,794,801.10
  5. Step 5: Solve for x
    x = 8,794,801.10/3,317.94
  6. Step 6: Final answer
    x = 2,650.68

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Half scale
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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.