Home / 7,749.70-10,694.46-4,213

Finding the Fourth Proportional to 7,749.70, 10,694.46 and 4,213

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Solution

The fourth proportional to 7,749.70, 10,694.46 and 4,213 is: 5,813.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,749.70 : 10,694.46 = 4,213 : x
  2. Step 2: Convert to fraction form
    7,749.70/10,694.46 = 4,213/x
  3. Step 3: Cross multiply
    7,749.70x = 10,694.46 × 4,213
  4. Step 4: Simplify right side
    7,749.70x = 45,055,759.98
  5. Step 5: Solve for x
    x = 45,055,759.98/7,749.70
  6. Step 6: Final answer
    x = 5,813.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.