Home / 3,387.14-4,673.83-1,971.21

Finding the Fourth Proportional to 3,387.14, 4,673.83 and 1,971.21

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Solution

The fourth proportional to 3,387.14, 4,673.83 and 1,971.21 is: 2,720.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,387.14 : 4,673.83 = 1,971.21 : x
  2. Step 2: Convert to fraction form
    3,387.14/4,673.83 = 1,971.21/x
  3. Step 3: Cross multiply
    3,387.14x = 4,673.83 × 1,971.21
  4. Step 4: Simplify right side
    3,387.14x = 9,213,100.43
  5. Step 5: Solve for x
    x = 9,213,100.43/3,387.14
  6. Step 6: Final answer
    x = 2,720.02

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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.