Home / 7,178.80-10,766.97-1,984.67

Finding the Fourth Proportional to 7,178.80, 10,766.97 and 1,984.67

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Solution

The fourth proportional to 7,178.80, 10,766.97 and 1,984.67 is: 2,976.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,178.80 : 10,766.97 = 1,984.67 : x
  2. Step 2: Convert to fraction form
    7,178.80/10,766.97 = 1,984.67/x
  3. Step 3: Cross multiply
    7,178.80x = 10,766.97 × 1,984.67
  4. Step 4: Simplify right side
    7,178.80x = 21,368,882.35
  5. Step 5: Solve for x
    x = 21,368,882.35/7,178.80
  6. Step 6: Final answer
    x = 2,976.66

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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.