Home / 4,819.68-7,228.88-1,309.96

Finding the Fourth Proportional to 4,819.68, 7,228.88 and 1,309.96

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Solution

The fourth proportional to 4,819.68, 7,228.88 and 1,309.96 is: 1,964.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,819.68 : 7,228.88 = 1,309.96 : x
  2. Step 2: Convert to fraction form
    4,819.68/7,228.88 = 1,309.96/x
  3. Step 3: Cross multiply
    4,819.68x = 7,228.88 × 1,309.96
  4. Step 4: Simplify right side
    4,819.68x = 9,469,543.64
  5. Step 5: Solve for x
    x = 9,469,543.64/4,819.68
  6. Step 6: Final answer
    x = 1,964.77

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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.