Home / 2,828.50-4,238.13-1,439.92

Finding the Fourth Proportional to 2,828.50, 4,238.13 and 1,439.92

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Solution

The fourth proportional to 2,828.50, 4,238.13 and 1,439.92 is: 2,157.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,828.50 : 4,238.13 = 1,439.92 : x
  2. Step 2: Convert to fraction form
    2,828.50/4,238.13 = 1,439.92/x
  3. Step 3: Cross multiply
    2,828.50x = 4,238.13 × 1,439.92
  4. Step 4: Simplify right side
    2,828.50x = 6,102,568.15
  5. Step 5: Solve for x
    x = 6,102,568.15/2,828.50
  6. Step 6: Final answer
    x = 2,157.53

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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.