Home / 7,749.79-10,694.76-4,213.06

Finding the Fourth Proportional to 7,749.79, 10,694.76 and 4,213.06

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Solution

The fourth proportional to 7,749.79, 10,694.76 and 4,213.06 is: 5,814.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,749.79 : 10,694.76 = 4,213.06 : x
  2. Step 2: Convert to fraction form
    7,749.79/10,694.76 = 4,213.06/x
  3. Step 3: Cross multiply
    7,749.79x = 10,694.76 × 4,213.06
  4. Step 4: Simplify right side
    7,749.79x = 45,057,665.57
  5. Step 5: Solve for x
    x = 45,057,665.57/7,749.79
  6. Step 6: Final answer
    x = 5,814.05

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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.