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Finding the Fourth Proportional to 6,340.56, 9,511.65 and 1,958.46

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Solution

The fourth proportional to 6,340.56, 9,511.65 and 1,958.46 is: 2,937.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,340.56 : 9,511.65 = 1,958.46 : x
  2. Step 2: Convert to fraction form
    6,340.56/9,511.65 = 1,958.46/x
  3. Step 3: Cross multiply
    6,340.56x = 9,511.65 × 1,958.46
  4. Step 4: Simplify right side
    6,340.56x = 18,628,186.06
  5. Step 5: Solve for x
    x = 18,628,186.06/6,340.56
  6. Step 6: Final answer
    x = 2,937.94

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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.