Home / 2,749.75-3,794.60-1,490.81

Finding the Fourth Proportional to 2,749.75, 3,794.60 and 1,490.81

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Solution

The fourth proportional to 2,749.75, 3,794.60 and 1,490.81 is: 2,057.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,749.75 : 3,794.60 = 1,490.81 : x
  2. Step 2: Convert to fraction form
    2,749.75/3,794.60 = 1,490.81/x
  3. Step 3: Cross multiply
    2,749.75x = 3,794.60 × 1,490.81
  4. Step 4: Simplify right side
    2,749.75x = 5,657,003.99
  5. Step 5: Solve for x
    x = 5,657,003.99/2,749.75
  6. Step 6: Final answer
    x = 2,057.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.