Home / 6,891.40-10,325.70-3,964.60

Finding the Fourth Proportional to 6,891.40, 10,325.70 and 3,964.60

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Solution

The fourth proportional to 6,891.40, 10,325.70 and 3,964.60 is: 5,940.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,891.40 : 10,325.70 = 3,964.60 : x
  2. Step 2: Convert to fraction form
    6,891.40/10,325.70 = 3,964.60/x
  3. Step 3: Cross multiply
    6,891.40x = 10,325.70 × 3,964.60
  4. Step 4: Simplify right side
    6,891.40x = 40,937,270.22
  5. Step 5: Solve for x
    x = 40,937,270.22/6,891.40
  6. Step 6: Final answer
    x = 5,940.34

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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.