Home / 3,180.21-4,770.44-1,205.63

Finding the Fourth Proportional to 3,180.21, 4,770.44 and 1,205.63

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Solution

The fourth proportional to 3,180.21, 4,770.44 and 1,205.63 is: 1,808.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,180.21 : 4,770.44 = 1,205.63 : x
  2. Step 2: Convert to fraction form
    3,180.21/4,770.44 = 1,205.63/x
  3. Step 3: Cross multiply
    3,180.21x = 4,770.44 × 1,205.63
  4. Step 4: Simplify right side
    3,180.21x = 5,751,411.72
  5. Step 5: Solve for x
    x = 5,751,411.72/3,180.21
  6. Step 6: Final answer
    x = 1,808.50

Related Problems

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Half scale
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Double scale
Find fourth proportional to 3,181.21, 4,771.94 and 1,206.63
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.