Home / 3,319.25-4,578.84-2,690.49

Finding the Fourth Proportional to 3,319.25, 4,578.84 and 2,690.49

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Solution

The fourth proportional to 3,319.25, 4,578.84 and 2,690.49 is: 3,711.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,319.25 : 4,578.84 = 2,690.49 : x
  2. Step 2: Convert to fraction form
    3,319.25/4,578.84 = 2,690.49/x
  3. Step 3: Cross multiply
    3,319.25x = 4,578.84 × 2,690.49
  4. Step 4: Simplify right side
    3,319.25x = 12,319,323.23
  5. Step 5: Solve for x
    x = 12,319,323.23/3,319.25
  6. Step 6: Final answer
    x = 3,711.48

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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.