Home / 7,749.64-10,694.58-4,212.91

Finding the Fourth Proportional to 7,749.64, 10,694.58 and 4,212.91

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Solution

The fourth proportional to 7,749.64, 10,694.58 and 4,212.91 is: 5,813.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,749.64 : 10,694.58 = 4,212.91 : x
  2. Step 2: Convert to fraction form
    7,749.64/10,694.58 = 4,212.91/x
  3. Step 3: Cross multiply
    7,749.64x = 10,694.58 × 4,212.91
  4. Step 4: Simplify right side
    7,749.64x = 45,055,249.55
  5. Step 5: Solve for x
    x = 45,055,249.55/7,749.64
  6. Step 6: Final answer
    x = 5,813.85

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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.