Home / 2,828.87-4,245.89-1,443.20

Finding the Fourth Proportional to 2,828.87, 4,245.89 and 1,443.20

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Solution

The fourth proportional to 2,828.87, 4,245.89 and 1,443.20 is: 2,166.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,828.87 : 4,245.89 = 1,443.20 : x
  2. Step 2: Convert to fraction form
    2,828.87/4,245.89 = 1,443.20/x
  3. Step 3: Cross multiply
    2,828.87x = 4,245.89 × 1,443.20
  4. Step 4: Simplify right side
    2,828.87x = 6,127,640.00
  5. Step 5: Solve for x
    x = 6,127,640.00/2,828.87
  6. Step 6: Final answer
    x = 2,166.11

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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.