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Finding the Fourth Proportional to 6,990.80, 10,486.24 and 1,796.72

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Solution

The fourth proportional to 6,990.80, 10,486.24 and 1,796.72 is: 2,695.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,990.80 : 10,486.24 = 1,796.72 : x
  2. Step 2: Convert to fraction form
    6,990.80/10,486.24 = 1,796.72/x
  3. Step 3: Cross multiply
    6,990.80x = 10,486.24 × 1,796.72
  4. Step 4: Simplify right side
    6,990.80x = 18,840,837.13
  5. Step 5: Solve for x
    x = 18,840,837.13/6,990.80
  6. Step 6: Final answer
    x = 2,695.09

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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.