Home / 2,828.67-4,238.68-1,439.93

Finding the Fourth Proportional to 2,828.67, 4,238.68 and 1,439.93

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Solution

The fourth proportional to 2,828.67, 4,238.68 and 1,439.93 is: 2,157.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,828.67 : 4,238.68 = 1,439.93 : x
  2. Step 2: Convert to fraction form
    2,828.67/4,238.68 = 1,439.93/x
  3. Step 3: Cross multiply
    2,828.67x = 4,238.68 × 1,439.93
  4. Step 4: Simplify right side
    2,828.67x = 6,103,388.30
  5. Step 5: Solve for x
    x = 6,103,388.30/2,828.67
  6. Step 6: Final answer
    x = 2,157.69

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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.