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Finding the Fourth Proportional to 4,755.99, 7,134.40 and 1,245.99

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Solution

The fourth proportional to 4,755.99, 7,134.40 and 1,245.99 is: 1,869.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,755.99 : 7,134.40 = 1,245.99 : x
  2. Step 2: Convert to fraction form
    4,755.99/7,134.40 = 1,245.99/x
  3. Step 3: Cross multiply
    4,755.99x = 7,134.40 × 1,245.99
  4. Step 4: Simplify right side
    4,755.99x = 8,889,391.06
  5. Step 5: Solve for x
    x = 8,889,391.06/4,755.99
  6. Step 6: Final answer
    x = 1,869.09

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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.