Home / 2,819.80-4,232.10-1,262.20

Finding the Fourth Proportional to 2,819.80, 4,232.10 and 1,262.20

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Solution

The fourth proportional to 2,819.80, 4,232.10 and 1,262.20 is: 1,894.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,819.80 : 4,232.10 = 1,262.20 : x
  2. Step 2: Convert to fraction form
    2,819.80/4,232.10 = 1,262.20/x
  3. Step 3: Cross multiply
    2,819.80x = 4,232.10 × 1,262.20
  4. Step 4: Simplify right side
    2,819.80x = 5,341,756.62
  5. Step 5: Solve for x
    x = 5,341,756.62/2,819.80
  6. Step 6: Final answer
    x = 1,894.37

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1.5x scale

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.