Home / 1,939.48-2,889.96-1,845.35

Finding the Fourth Proportional to 1,939.48, 2,889.96 and 1,845.35

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Solution

The fourth proportional to 1,939.48, 2,889.96 and 1,845.35 is: 2,749.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,939.48 : 2,889.96 = 1,845.35 : x
  2. Step 2: Convert to fraction form
    1,939.48/2,889.96 = 1,845.35/x
  3. Step 3: Cross multiply
    1,939.48x = 2,889.96 × 1,845.35
  4. Step 4: Simplify right side
    1,939.48x = 5,332,977.15
  5. Step 5: Solve for x
    x = 5,332,977.15/1,939.48
  6. Step 6: Final answer
    x = 2,749.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.