Home / 6,890.86-10,334.74-1,960.39

Finding the Fourth Proportional to 6,890.86, 10,334.74 and 1,960.39

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Solution

The fourth proportional to 6,890.86, 10,334.74 and 1,960.39 is: 2,940.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,890.86 : 10,334.74 = 1,960.39 : x
  2. Step 2: Convert to fraction form
    6,890.86/10,334.74 = 1,960.39/x
  3. Step 3: Cross multiply
    6,890.86x = 10,334.74 × 1,960.39
  4. Step 4: Simplify right side
    6,890.86x = 20,260,120.95
  5. Step 5: Solve for x
    x = 20,260,120.95/6,890.86
  6. Step 6: Final answer
    x = 2,940.14

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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.