Home / 2,272.23-3,406.77-1,285.71

Finding the Fourth Proportional to 2,272.23, 3,406.77 and 1,285.71

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Solution

The fourth proportional to 2,272.23, 3,406.77 and 1,285.71 is: 1,927.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,272.23 : 3,406.77 = 1,285.71 : x
  2. Step 2: Convert to fraction form
    2,272.23/3,406.77 = 1,285.71/x
  3. Step 3: Cross multiply
    2,272.23x = 3,406.77 × 1,285.71
  4. Step 4: Simplify right side
    2,272.23x = 4,380,118.26
  5. Step 5: Solve for x
    x = 4,380,118.26/2,272.23
  6. Step 6: Final answer
    x = 1,927.67

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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.