Home / 3,321.29-4,578.36-2,730.80

Finding the Fourth Proportional to 3,321.29, 4,578.36 and 2,730.80

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Solution

The fourth proportional to 3,321.29, 4,578.36 and 2,730.80 is: 3,764.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,321.29 : 4,578.36 = 2,730.80 : x
  2. Step 2: Convert to fraction form
    3,321.29/4,578.36 = 2,730.80/x
  3. Step 3: Cross multiply
    3,321.29x = 4,578.36 × 2,730.80
  4. Step 4: Simplify right side
    3,321.29x = 12,502,569.42
  5. Step 5: Solve for x
    x = 12,502,569.42/3,321.29
  6. Step 6: Final answer
    x = 3,764.38

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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.