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Finding the Fourth Proportional to 7,200.19, 10,800.28 and 3,096.19

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Solution

The fourth proportional to 7,200.19, 10,800.28 and 3,096.19 is: 4,644.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,200.19 : 10,800.28 = 3,096.19 : x
  2. Step 2: Convert to fraction form
    7,200.19/10,800.28 = 3,096.19/x
  3. Step 3: Cross multiply
    7,200.19x = 10,800.28 × 3,096.19
  4. Step 4: Simplify right side
    7,200.19x = 33,439,718.93
  5. Step 5: Solve for x
    x = 33,439,718.93/7,200.19
  6. Step 6: Final answer
    x = 4,644.28

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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.