Home / 5,405.94-8,099.80-3,842.84

Finding the Fourth Proportional to 5,405.94, 8,099.80 and 3,842.84

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Solution

The fourth proportional to 5,405.94, 8,099.80 and 3,842.84 is: 5,757.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,405.94 : 8,099.80 = 3,842.84 : x
  2. Step 2: Convert to fraction form
    5,405.94/8,099.80 = 3,842.84/x
  3. Step 3: Cross multiply
    5,405.94x = 8,099.80 × 3,842.84
  4. Step 4: Simplify right side
    5,405.94x = 31,126,246.07
  5. Step 5: Solve for x
    x = 31,126,246.07/5,405.94
  6. Step 6: Final answer
    x = 5,757.79

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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.