Home / 2,819.73-4,226.46-1,430.20

Finding the Fourth Proportional to 2,819.73, 4,226.46 and 1,430.20

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Solution

The fourth proportional to 2,819.73, 4,226.46 and 1,430.20 is: 2,143.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,819.73 : 4,226.46 = 1,430.20 : x
  2. Step 2: Convert to fraction form
    2,819.73/4,226.46 = 1,430.20/x
  3. Step 3: Cross multiply
    2,819.73x = 4,226.46 × 1,430.20
  4. Step 4: Simplify right side
    2,819.73x = 6,044,671.31
  5. Step 5: Solve for x
    x = 6,044,671.31/2,819.73
  6. Step 6: Final answer
    x = 2,143.70

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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.