Home / 2,161.51-3,240.39-1,834.58

Finding the Fourth Proportional to 2,161.51, 3,240.39 and 1,834.58

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Solution

The fourth proportional to 2,161.51, 3,240.39 and 1,834.58 is: 2,750.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,161.51 : 3,240.39 = 1,834.58 : x
  2. Step 2: Convert to fraction form
    2,161.51/3,240.39 = 1,834.58/x
  3. Step 3: Cross multiply
    2,161.51x = 3,240.39 × 1,834.58
  4. Step 4: Simplify right side
    2,161.51x = 5,944,754.69
  5. Step 5: Solve for x
    x = 5,944,754.69/2,161.51
  6. Step 6: Final answer
    x = 2,750.28

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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.