Home / 5,688.14-7,842.92-3,896.48

Finding the Fourth Proportional to 5,688.14, 7,842.92 and 3,896.48

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Solution

The fourth proportional to 5,688.14, 7,842.92 and 3,896.48 is: 5,372.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,688.14 : 7,842.92 = 3,896.48 : x
  2. Step 2: Convert to fraction form
    5,688.14/7,842.92 = 3,896.48/x
  3. Step 3: Cross multiply
    5,688.14x = 7,842.92 × 3,896.48
  4. Step 4: Simplify right side
    5,688.14x = 30,559,780.92
  5. Step 5: Solve for x
    x = 30,559,780.92/5,688.14
  6. Step 6: Final answer
    x = 5,372.54

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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.