Home / 5,183.96-7,775.93-1,288.35

Finding the Fourth Proportional to 5,183.96, 7,775.93 and 1,288.35

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Solution

The fourth proportional to 5,183.96, 7,775.93 and 1,288.35 is: 1,932.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,183.96 : 7,775.93 = 1,288.35 : x
  2. Step 2: Convert to fraction form
    5,183.96/7,775.93 = 1,288.35/x
  3. Step 3: Cross multiply
    5,183.96x = 7,775.93 × 1,288.35
  4. Step 4: Simplify right side
    5,183.96x = 10,018,112.97
  5. Step 5: Solve for x
    x = 10,018,112.97/5,183.96
  6. Step 6: Final answer
    x = 1,932.52

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.