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Finding the Fourth Proportional to 7,200.94, 10,800.52 and 1,936.35

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Solution

The fourth proportional to 7,200.94, 10,800.52 and 1,936.35 is: 2,904.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,200.94 : 10,800.52 = 1,936.35 : x
  2. Step 2: Convert to fraction form
    7,200.94/10,800.52 = 1,936.35/x
  3. Step 3: Cross multiply
    7,200.94x = 10,800.52 × 1,936.35
  4. Step 4: Simplify right side
    7,200.94x = 20,913,586.90
  5. Step 5: Solve for x
    x = 20,913,586.90/7,200.94
  6. Step 6: Final answer
    x = 2,904.29

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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.