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Finding the Fourth Proportional to 5,183.79, 7,775.01 and 1,485.87

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Solution

The fourth proportional to 5,183.79, 7,775.01 and 1,485.87 is: 2,228.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,183.79 : 7,775.01 = 1,485.87 : x
  2. Step 2: Convert to fraction form
    5,183.79/7,775.01 = 1,485.87/x
  3. Step 3: Cross multiply
    5,183.79x = 7,775.01 × 1,485.87
  4. Step 4: Simplify right side
    5,183.79x = 11,552,654.11
  5. Step 5: Solve for x
    x = 11,552,654.11/5,183.79
  6. Step 6: Final answer
    x = 2,228.61

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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.