Home / 6,619.18-9,899.60-3,838.65

Finding the Fourth Proportional to 6,619.18, 9,899.60 and 3,838.65

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Solution

The fourth proportional to 6,619.18, 9,899.60 and 3,838.65 is: 5,741.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,619.18 : 9,899.60 = 3,838.65 : x
  2. Step 2: Convert to fraction form
    6,619.18/9,899.60 = 3,838.65/x
  3. Step 3: Cross multiply
    6,619.18x = 9,899.60 × 3,838.65
  4. Step 4: Simplify right side
    6,619.18x = 38,001,099.54
  5. Step 5: Solve for x
    x = 38,001,099.54/6,619.18
  6. Step 6: Final answer
    x = 5,741.06

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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.