Home / 2,181.91-3,273.05-2,071.21

Finding the Fourth Proportional to 2,181.91, 3,273.05 and 2,071.21

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Solution

The fourth proportional to 2,181.91, 3,273.05 and 2,071.21 is: 3,106.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,181.91 : 3,273.05 = 2,071.21 : x
  2. Step 2: Convert to fraction form
    2,181.91/3,273.05 = 2,071.21/x
  3. Step 3: Cross multiply
    2,181.91x = 3,273.05 × 2,071.21
  4. Step 4: Simplify right side
    2,181.91x = 6,779,173.89
  5. Step 5: Solve for x
    x = 6,779,173.89/2,181.91
  6. Step 6: Final answer
    x = 3,106.99

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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.