Home / 7,749.81-10,694.57-4,212.95

Finding the Fourth Proportional to 7,749.81, 10,694.57 and 4,212.95

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Solution

The fourth proportional to 7,749.81, 10,694.57 and 4,212.95 is: 5,813.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,749.81 : 10,694.57 = 4,212.95 : x
  2. Step 2: Convert to fraction form
    7,749.81/10,694.57 = 4,212.95/x
  3. Step 3: Cross multiply
    7,749.81x = 10,694.57 × 4,212.95
  4. Step 4: Simplify right side
    7,749.81x = 45,055,614.14
  5. Step 5: Solve for x
    x = 45,055,614.14/7,749.81
  6. Step 6: Final answer
    x = 5,813.77

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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.