Home / 7,789.16-10,749.22-4,252.38

Finding the Fourth Proportional to 7,789.16, 10,749.22 and 4,252.38

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Solution

The fourth proportional to 7,789.16, 10,749.22 and 4,252.38 is: 5,868.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,789.16 : 10,749.22 = 4,252.38 : x
  2. Step 2: Convert to fraction form
    7,789.16/10,749.22 = 4,252.38/x
  3. Step 3: Cross multiply
    7,789.16x = 10,749.22 × 4,252.38
  4. Step 4: Simplify right side
    7,789.16x = 45,709,768.14
  5. Step 5: Solve for x
    x = 45,709,768.14/7,789.16
  6. Step 6: Final answer
    x = 5,868.38

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Double scale
Find fourth proportional to 7,790.16, 10,750.60 and 4,253.38
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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.