Home / 3,814.66-5,263.41-2,221.12

Finding the Fourth Proportional to 3,814.66, 5,263.41 and 2,221.12

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Solution

The fourth proportional to 3,814.66, 5,263.41 and 2,221.12 is: 3,064.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,814.66 : 5,263.41 = 2,221.12 : x
  2. Step 2: Convert to fraction form
    3,814.66/5,263.41 = 2,221.12/x
  3. Step 3: Cross multiply
    3,814.66x = 5,263.41 × 2,221.12
  4. Step 4: Simplify right side
    3,814.66x = 11,690,665.22
  5. Step 5: Solve for x
    x = 11,690,665.22/3,814.66
  6. Step 6: Final answer
    x = 3,064.67

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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.