Home / 7,177.87-10,767.43-1,983.75

Finding the Fourth Proportional to 7,177.87, 10,767.43 and 1,983.75

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Solution

The fourth proportional to 7,177.87, 10,767.43 and 1,983.75 is: 2,975.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,177.87 : 10,767.43 = 1,983.75 : x
  2. Step 2: Convert to fraction form
    7,177.87/10,767.43 = 1,983.75/x
  3. Step 3: Cross multiply
    7,177.87x = 10,767.43 × 1,983.75
  4. Step 4: Simplify right side
    7,177.87x = 21,359,889.26
  5. Step 5: Solve for x
    x = 21,359,889.26/7,177.87
  6. Step 6: Final answer
    x = 2,975.80

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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.