Home / 3,355.90-4,631.01-1,939.36

Finding the Fourth Proportional to 3,355.90, 4,631.01 and 1,939.36

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Solution

The fourth proportional to 3,355.90, 4,631.01 and 1,939.36 is: 2,676.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,355.90 : 4,631.01 = 1,939.36 : x
  2. Step 2: Convert to fraction form
    3,355.90/4,631.01 = 1,939.36/x
  3. Step 3: Cross multiply
    3,355.90x = 4,631.01 × 1,939.36
  4. Step 4: Simplify right side
    3,355.90x = 8,981,195.55
  5. Step 5: Solve for x
    x = 8,981,195.55/3,355.90
  6. Step 6: Final answer
    x = 2,676.24

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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.