Home / 2,161.40-3,244.84-1,838.82

Finding the Fourth Proportional to 2,161.40, 3,244.84 and 1,838.82

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Solution

The fourth proportional to 2,161.40, 3,244.84 and 1,838.82 is: 2,760.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,161.40 : 3,244.84 = 1,838.82 : x
  2. Step 2: Convert to fraction form
    2,161.40/3,244.84 = 1,838.82/x
  3. Step 3: Cross multiply
    2,161.40x = 3,244.84 × 1,838.82
  4. Step 4: Simplify right side
    2,161.40x = 5,966,676.69
  5. Step 5: Solve for x
    x = 5,966,676.69/2,161.40
  6. Step 6: Final answer
    x = 2,760.56

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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.