Home / 2,116.13-3,174.21-1,351.49

Finding the Fourth Proportional to 2,116.13, 3,174.21 and 1,351.49

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Solution

The fourth proportional to 2,116.13, 3,174.21 and 1,351.49 is: 2,027.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,116.13 : 3,174.21 = 1,351.49 : x
  2. Step 2: Convert to fraction form
    2,116.13/3,174.21 = 1,351.49/x
  3. Step 3: Cross multiply
    2,116.13x = 3,174.21 × 1,351.49
  4. Step 4: Simplify right side
    2,116.13x = 4,289,913.07
  5. Step 5: Solve for x
    x = 4,289,913.07/2,116.13
  6. Step 6: Final answer
    x = 2,027.24

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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.