Home / 5,802.81-8,704.20-2,105.02

Finding the Fourth Proportional to 5,802.81, 8,704.20 and 2,105.02

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Solution

The fourth proportional to 5,802.81, 8,704.20 and 2,105.02 is: 3,157.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,802.81 : 8,704.20 = 2,105.02 : x
  2. Step 2: Convert to fraction form
    5,802.81/8,704.20 = 2,105.02/x
  3. Step 3: Cross multiply
    5,802.81x = 8,704.20 × 2,105.02
  4. Step 4: Simplify right side
    5,802.81x = 18,322,515.08
  5. Step 5: Solve for x
    x = 18,322,515.08/5,802.81
  6. Step 6: Final answer
    x = 3,157.52

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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.