Home / 2,132.04-3,197.78-671.20

Finding the Fourth Proportional to 2,132.04, 3,197.78 and 671.20

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Solution

The fourth proportional to 2,132.04, 3,197.78 and 671.20 is: 1,006.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,132.04 : 3,197.78 = 671.20 : x
  2. Step 2: Convert to fraction form
    2,132.04/3,197.78 = 671.20/x
  3. Step 3: Cross multiply
    2,132.04x = 3,197.78 × 671.20
  4. Step 4: Simplify right side
    2,132.04x = 2,146,349.94
  5. Step 5: Solve for x
    x = 2,146,349.94/2,132.04
  6. Step 6: Final answer
    x = 1,006.71

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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.