Home / 2,161.44-2,982.96-1,661.76

Finding the Fourth Proportional to 2,161.44, 2,982.96 and 1,661.76

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Solution

The fourth proportional to 2,161.44, 2,982.96 and 1,661.76 is: 2,293.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,161.44 : 2,982.96 = 1,661.76 : x
  2. Step 2: Convert to fraction form
    2,161.44/2,982.96 = 1,661.76/x
  3. Step 3: Cross multiply
    2,161.44x = 2,982.96 × 1,661.76
  4. Step 4: Simplify right side
    2,161.44x = 4,956,963.61
  5. Step 5: Solve for x
    x = 4,956,963.61/2,161.44
  6. Step 6: Final answer
    x = 2,293.36

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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.