Home / 5,651.21-8,475.66-2,140.01

Finding the Fourth Proportional to 5,651.21, 8,475.66 and 2,140.01

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Solution

The fourth proportional to 5,651.21, 8,475.66 and 2,140.01 is: 3,209.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,651.21 : 8,475.66 = 2,140.01 : x
  2. Step 2: Convert to fraction form
    5,651.21/8,475.66 = 2,140.01/x
  3. Step 3: Cross multiply
    5,651.21x = 8,475.66 × 2,140.01
  4. Step 4: Simplify right side
    5,651.21x = 18,137,986.56
  5. Step 5: Solve for x
    x = 18,137,986.56/5,651.21
  6. Step 6: Final answer
    x = 3,209.57

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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.