Home / 3,181.90-4,391.26-1,923.26

Finding the Fourth Proportional to 3,181.90, 4,391.26 and 1,923.26

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Solution

The fourth proportional to 3,181.90, 4,391.26 and 1,923.26 is: 2,654.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,181.90 : 4,391.26 = 1,923.26 : x
  2. Step 2: Convert to fraction form
    3,181.90/4,391.26 = 1,923.26/x
  3. Step 3: Cross multiply
    3,181.90x = 4,391.26 × 1,923.26
  4. Step 4: Simplify right side
    3,181.90x = 8,445,534.71
  5. Step 5: Solve for x
    x = 8,445,534.71/3,181.90
  6. Step 6: Final answer
    x = 2,654.24

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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.