Home / 7,183.19-10,775.54-1,989.07

Finding the Fourth Proportional to 7,183.19, 10,775.54 and 1,989.07

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Solution

The fourth proportional to 7,183.19, 10,775.54 and 1,989.07 is: 2,983.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,183.19 : 10,775.54 = 1,989.07 : x
  2. Step 2: Convert to fraction form
    7,183.19/10,775.54 = 1,989.07/x
  3. Step 3: Cross multiply
    7,183.19x = 10,775.54 × 1,989.07
  4. Step 4: Simplify right side
    7,183.19x = 21,433,239.52
  5. Step 5: Solve for x
    x = 21,433,239.52/7,183.19
  6. Step 6: Final answer
    x = 2,983.81

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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.