Home / 3,040.50-4,193.54-1,921.03

Finding the Fourth Proportional to 3,040.50, 4,193.54 and 1,921.03

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Solution

The fourth proportional to 3,040.50, 4,193.54 and 1,921.03 is: 2,649.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,040.50 : 4,193.54 = 1,921.03 : x
  2. Step 2: Convert to fraction form
    3,040.50/4,193.54 = 1,921.03/x
  3. Step 3: Cross multiply
    3,040.50x = 4,193.54 × 1,921.03
  4. Step 4: Simplify right side
    3,040.50x = 8,055,916.15
  5. Step 5: Solve for x
    x = 8,055,916.15/3,040.50
  6. Step 6: Final answer
    x = 2,649.54

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Double scale
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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.