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Finding the Fourth Proportional to 6,670.80, 9,184.18 and 5,489.84

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Solution

The fourth proportional to 6,670.80, 9,184.18 and 5,489.84 is: 7,558.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,670.80 : 9,184.18 = 5,489.84 : x
  2. Step 2: Convert to fraction form
    6,670.80/9,184.18 = 5,489.84/x
  3. Step 3: Cross multiply
    6,670.80x = 9,184.18 × 5,489.84
  4. Step 4: Simplify right side
    6,670.80x = 50,419,678.73
  5. Step 5: Solve for x
    x = 50,419,678.73/6,670.80
  6. Step 6: Final answer
    x = 7,558.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.