Home / 2,031.35-3,051.11-1,211.22

Finding the Fourth Proportional to 2,031.35, 3,051.11 and 1,211.22

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Solution

The fourth proportional to 2,031.35, 3,051.11 and 1,211.22 is: 1,819.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,031.35 : 3,051.11 = 1,211.22 : x
  2. Step 2: Convert to fraction form
    2,031.35/3,051.11 = 1,211.22/x
  3. Step 3: Cross multiply
    2,031.35x = 3,051.11 × 1,211.22
  4. Step 4: Simplify right side
    2,031.35x = 3,695,568.48
  5. Step 5: Solve for x
    x = 3,695,568.48/2,031.35
  6. Step 6: Final answer
    x = 1,819.27

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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.