Home / 6,895.47-10,343.81-1,965

Finding the Fourth Proportional to 6,895.47, 10,343.81 and 1,965

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Solution

The fourth proportional to 6,895.47, 10,343.81 and 1,965 is: 2,947.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,895.47 : 10,343.81 = 1,965 : x
  2. Step 2: Convert to fraction form
    6,895.47/10,343.81 = 1,965/x
  3. Step 3: Cross multiply
    6,895.47x = 10,343.81 × 1,965
  4. Step 4: Simplify right side
    6,895.47x = 20,325,591.56
  5. Step 5: Solve for x
    x = 20,325,591.56/6,895.47
  6. Step 6: Final answer
    x = 2,947.67

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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.