Home / 2,132.21-3,197.19-670.97

Finding the Fourth Proportional to 2,132.21, 3,197.19 and 670.97

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Solution

The fourth proportional to 2,132.21, 3,197.19 and 670.97 is: 1,006.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,132.21 : 3,197.19 = 670.97 : x
  2. Step 2: Convert to fraction form
    2,132.21/3,197.19 = 670.97/x
  3. Step 3: Cross multiply
    2,132.21x = 3,197.19 × 670.97
  4. Step 4: Simplify right side
    2,132.21x = 2,145,218.57
  5. Step 5: Solve for x
    x = 2,145,218.57/2,132.21
  6. Step 6: Final answer
    x = 1,006.10

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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.