Home / 4,819.80-7,225.42-1,900.20

Finding the Fourth Proportional to 4,819.80, 7,225.42 and 1,900.20

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Solution

The fourth proportional to 4,819.80, 7,225.42 and 1,900.20 is: 2,848.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,819.80 : 7,225.42 = 1,900.20 : x
  2. Step 2: Convert to fraction form
    4,819.80/7,225.42 = 1,900.20/x
  3. Step 3: Cross multiply
    4,819.80x = 7,225.42 × 1,900.20
  4. Step 4: Simplify right side
    4,819.80x = 13,729,743.08
  5. Step 5: Solve for x
    x = 13,729,743.08/4,819.80
  6. Step 6: Final answer
    x = 2,848.61

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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.