Home / 7,173.96-10,756.78-2,786.28

Finding the Fourth Proportional to 7,173.96, 10,756.78 and 2,786.28

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Solution

The fourth proportional to 7,173.96, 10,756.78 and 2,786.28 is: 4,177.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,173.96 : 10,756.78 = 2,786.28 : x
  2. Step 2: Convert to fraction form
    7,173.96/10,756.78 = 2,786.28/x
  3. Step 3: Cross multiply
    7,173.96x = 10,756.78 × 2,786.28
  4. Step 4: Simplify right side
    7,173.96x = 29,971,400.98
  5. Step 5: Solve for x
    x = 29,971,400.98/7,173.96
  6. Step 6: Final answer
    x = 4,177.80

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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.