Home / 3,181.19-4,765.62-1,790.30

Finding the Fourth Proportional to 3,181.19, 4,765.62 and 1,790.30

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Solution

The fourth proportional to 3,181.19, 4,765.62 and 1,790.30 is: 2,681.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,181.19 : 4,765.62 = 1,790.30 : x
  2. Step 2: Convert to fraction form
    3,181.19/4,765.62 = 1,790.30/x
  3. Step 3: Cross multiply
    3,181.19x = 4,765.62 × 1,790.30
  4. Step 4: Simplify right side
    3,181.19x = 8,531,865.66
  5. Step 5: Solve for x
    x = 8,531,865.66/3,181.19
  6. Step 6: Final answer
    x = 2,681.98

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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.