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Finding the Fourth Proportional to 2,499.74, 3,749.75 and 650.86

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Solution

The fourth proportional to 2,499.74, 3,749.75 and 650.86 is: 976.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,499.74 : 3,749.75 = 650.86 : x
  2. Step 2: Convert to fraction form
    2,499.74/3,749.75 = 650.86/x
  3. Step 3: Cross multiply
    2,499.74x = 3,749.75 × 650.86
  4. Step 4: Simplify right side
    2,499.74x = 2,440,571.66
  5. Step 5: Solve for x
    x = 2,440,571.66/2,499.74
  6. Step 6: Final answer
    x = 976.33

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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.