Home / 3,120.72-4,310.38-2,466.24

Finding the Fourth Proportional to 3,120.72, 4,310.38 and 2,466.24

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Solution

The fourth proportional to 3,120.72, 4,310.38 and 2,466.24 is: 3,406.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120.72 : 4,310.38 = 2,466.24 : x
  2. Step 2: Convert to fraction form
    3,120.72/4,310.38 = 2,466.24/x
  3. Step 3: Cross multiply
    3,120.72x = 4,310.38 × 2,466.24
  4. Step 4: Simplify right side
    3,120.72x = 10,630,431.57
  5. Step 5: Solve for x
    x = 10,630,431.57/3,120.72
  6. Step 6: Final answer
    x = 3,406.40

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Half scale
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Double scale
Find fourth proportional to 3,121.72, 4,311.76 and 2,467.24
Similar ratio
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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.