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Finding the Fourth Proportional to 7,245.54, 10,860.89 and 4,905.77

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Solution

The fourth proportional to 7,245.54, 10,860.89 and 4,905.77 is: 7,353.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,245.54 : 10,860.89 = 4,905.77 : x
  2. Step 2: Convert to fraction form
    7,245.54/10,860.89 = 4,905.77/x
  3. Step 3: Cross multiply
    7,245.54x = 10,860.89 × 4,905.77
  4. Step 4: Simplify right side
    7,245.54x = 53,280,949.50
  5. Step 5: Solve for x
    x = 53,280,949.50/7,245.54
  6. Step 6: Final answer
    x = 7,353.62

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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.