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Finding the Fourth Proportional to 2,379.24, 3,566.93 and 993.60

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Solution

The fourth proportional to 2,379.24, 3,566.93 and 993.60 is: 1,489.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,379.24 : 3,566.93 = 993.60 : x
  2. Step 2: Convert to fraction form
    2,379.24/3,566.93 = 993.60/x
  3. Step 3: Cross multiply
    2,379.24x = 3,566.93 × 993.60
  4. Step 4: Simplify right side
    2,379.24x = 3,544,096.68
  5. Step 5: Solve for x
    x = 3,544,096.68/2,379.24
  6. Step 6: Final answer
    x = 1,489.59

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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.