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Finding the Fourth Proportional to 7,209.04, 10,813.60 and 3,739.04

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Solution

The fourth proportional to 7,209.04, 10,813.60 and 3,739.04 is: 5,608.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,209.04 : 10,813.60 = 3,739.04 : x
  2. Step 2: Convert to fraction form
    7,209.04/10,813.60 = 3,739.04/x
  3. Step 3: Cross multiply
    7,209.04x = 10,813.60 × 3,739.04
  4. Step 4: Simplify right side
    7,209.04x = 40,432,482.94
  5. Step 5: Solve for x
    x = 40,432,482.94/7,209.04
  6. Step 6: Final answer
    x = 5,608.58

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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.