Home / 7,183.08-10,775.21-1,988.96

Finding the Fourth Proportional to 7,183.08, 10,775.21 and 1,988.96

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Solution

The fourth proportional to 7,183.08, 10,775.21 and 1,988.96 is: 2,983.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,183.08 : 10,775.21 = 1,988.96 : x
  2. Step 2: Convert to fraction form
    7,183.08/10,775.21 = 1,988.96/x
  3. Step 3: Cross multiply
    7,183.08x = 10,775.21 × 1,988.96
  4. Step 4: Simplify right side
    7,183.08x = 21,431,397.86
  5. Step 5: Solve for x
    x = 21,431,397.86/7,183.08
  6. Step 6: Final answer
    x = 2,983.59

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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.