Home / 2,792.20-3,853.26-1,613.28

Finding the Fourth Proportional to 2,792.20, 3,853.26 and 1,613.28

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Solution

The fourth proportional to 2,792.20, 3,853.26 and 1,613.28 is: 2,226.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,792.20 : 3,853.26 = 1,613.28 : x
  2. Step 2: Convert to fraction form
    2,792.20/3,853.26 = 1,613.28/x
  3. Step 3: Cross multiply
    2,792.20x = 3,853.26 × 1,613.28
  4. Step 4: Simplify right side
    2,792.20x = 6,216,379.23
  5. Step 5: Solve for x
    x = 6,216,379.23/2,792.20
  6. Step 6: Final answer
    x = 2,226.34

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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.