Home / 7,749.89-10,694.40-4,213.07

Finding the Fourth Proportional to 7,749.89, 10,694.40 and 4,213.07

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Solution

The fourth proportional to 7,749.89, 10,694.40 and 4,213.07 is: 5,813.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,749.89 : 10,694.40 = 4,213.07 : x
  2. Step 2: Convert to fraction form
    7,749.89/10,694.40 = 4,213.07/x
  3. Step 3: Cross multiply
    7,749.89x = 10,694.40 × 4,213.07
  4. Step 4: Simplify right side
    7,749.89x = 45,056,272.01
  5. Step 5: Solve for x
    x = 45,056,272.01/7,749.89
  6. Step 6: Final answer
    x = 5,813.79

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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.