Home / 2,116.19-3,174.39-1,021.48

Finding the Fourth Proportional to 2,116.19, 3,174.39 and 1,021.48

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Solution

The fourth proportional to 2,116.19, 3,174.39 and 1,021.48 is: 1,532.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,116.19 : 3,174.39 = 1,021.48 : x
  2. Step 2: Convert to fraction form
    2,116.19/3,174.39 = 1,021.48/x
  3. Step 3: Cross multiply
    2,116.19x = 3,174.39 × 1,021.48
  4. Step 4: Simplify right side
    2,116.19x = 3,242,567.96
  5. Step 5: Solve for x
    x = 3,242,567.96/2,116.19
  6. Step 6: Final answer
    x = 1,532.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.