Home / 2,161.69-2,983.14-1,277.94

Finding the Fourth Proportional to 2,161.69, 2,983.14 and 1,277.94

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Solution

The fourth proportional to 2,161.69, 2,983.14 and 1,277.94 is: 1,763.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,161.69 : 2,983.14 = 1,277.94 : x
  2. Step 2: Convert to fraction form
    2,161.69/2,983.14 = 1,277.94/x
  3. Step 3: Cross multiply
    2,161.69x = 2,983.14 × 1,277.94
  4. Step 4: Simplify right side
    2,161.69x = 3,812,273.93
  5. Step 5: Solve for x
    x = 3,812,273.93/2,161.69
  6. Step 6: Final answer
    x = 1,763.56

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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.