Home / 4,255.19-6,379.73-2,148.14

Finding the Fourth Proportional to 4,255.19, 6,379.73 and 2,148.14

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Solution

The fourth proportional to 4,255.19, 6,379.73 and 2,148.14 is: 3,220.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,255.19 : 6,379.73 = 2,148.14 : x
  2. Step 2: Convert to fraction form
    4,255.19/6,379.73 = 2,148.14/x
  3. Step 3: Cross multiply
    4,255.19x = 6,379.73 × 2,148.14
  4. Step 4: Simplify right side
    4,255.19x = 13,704,510.56
  5. Step 5: Solve for x
    x = 13,704,510.56/4,255.19
  6. Step 6: Final answer
    x = 3,220.66

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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.