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Finding the Fourth Proportional to 7,228.63, 10,834.31 and 3,720.32

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Solution

The fourth proportional to 7,228.63, 10,834.31 and 3,720.32 is: 5,576.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,228.63 : 10,834.31 = 3,720.32 : x
  2. Step 2: Convert to fraction form
    7,228.63/10,834.31 = 3,720.32/x
  3. Step 3: Cross multiply
    7,228.63x = 10,834.31 × 3,720.32
  4. Step 4: Simplify right side
    7,228.63x = 40,307,100.18
  5. Step 5: Solve for x
    x = 40,307,100.18/7,228.63
  6. Step 6: Final answer
    x = 5,576.04

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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.