Home / 6,919.48-10,379.86-2,758.48

Finding the Fourth Proportional to 6,919.48, 10,379.86 and 2,758.48

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Solution

The fourth proportional to 6,919.48, 10,379.86 and 2,758.48 is: 4,137.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,919.48 : 10,379.86 = 2,758.48 : x
  2. Step 2: Convert to fraction form
    6,919.48/10,379.86 = 2,758.48/x
  3. Step 3: Cross multiply
    6,919.48x = 10,379.86 × 2,758.48
  4. Step 4: Simplify right side
    6,919.48x = 28,632,636.21
  5. Step 5: Solve for x
    x = 28,632,636.21/6,919.48
  6. Step 6: Final answer
    x = 4,137.98

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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.