Home / 2,828.80-4,245.90-1,443.70

Finding the Fourth Proportional to 2,828.80, 4,245.90 and 1,443.70

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Solution

The fourth proportional to 2,828.80, 4,245.90 and 1,443.70 is: 2,166.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,828.80 : 4,245.90 = 1,443.70 : x
  2. Step 2: Convert to fraction form
    2,828.80/4,245.90 = 1,443.70/x
  3. Step 3: Cross multiply
    2,828.80x = 4,245.90 × 1,443.70
  4. Step 4: Simplify right side
    2,828.80x = 6,129,805.83
  5. Step 5: Solve for x
    x = 6,129,805.83/2,828.80
  6. Step 6: Final answer
    x = 2,166.93

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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.