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Finding the Fourth Proportional to 6,883.68, 10,325.36 and 2,990.88

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Solution

The fourth proportional to 6,883.68, 10,325.36 and 2,990.88 is: 4,486.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,883.68 : 10,325.36 = 2,990.88 : x
  2. Step 2: Convert to fraction form
    6,883.68/10,325.36 = 2,990.88/x
  3. Step 3: Cross multiply
    6,883.68x = 10,325.36 × 2,990.88
  4. Step 4: Simplify right side
    6,883.68x = 30,881,912.72
  5. Step 5: Solve for x
    x = 30,881,912.72/6,883.68
  6. Step 6: Final answer
    x = 4,486.25

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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.