Home / 6,890.81-10,334.99-1,960.74

Finding the Fourth Proportional to 6,890.81, 10,334.99 and 1,960.74

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Solution

The fourth proportional to 6,890.81, 10,334.99 and 1,960.74 is: 2,940.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,890.81 : 10,334.99 = 1,960.74 : x
  2. Step 2: Convert to fraction form
    6,890.81/10,334.99 = 1,960.74/x
  3. Step 3: Cross multiply
    6,890.81x = 10,334.99 × 1,960.74
  4. Step 4: Simplify right side
    6,890.81x = 20,264,233.19
  5. Step 5: Solve for x
    x = 20,264,233.19/6,890.81
  6. Step 6: Final answer
    x = 2,940.76

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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.