Home / 4,212.80-6,321.47-1,749.32

Finding the Fourth Proportional to 4,212.80, 6,321.47 and 1,749.32

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Solution

The fourth proportional to 4,212.80, 6,321.47 and 1,749.32 is: 2,624.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,212.80 : 6,321.47 = 1,749.32 : x
  2. Step 2: Convert to fraction form
    4,212.80/6,321.47 = 1,749.32/x
  3. Step 3: Cross multiply
    4,212.80x = 6,321.47 × 1,749.32
  4. Step 4: Simplify right side
    4,212.80x = 11,058,233.55
  5. Step 5: Solve for x
    x = 11,058,233.55/4,212.80
  6. Step 6: Final answer
    x = 2,624.92

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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.