Home / 2,161.73-2,983.22-1,277.53

Finding the Fourth Proportional to 2,161.73, 2,983.22 and 1,277.53

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Solution

The fourth proportional to 2,161.73, 2,983.22 and 1,277.53 is: 1,763.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,161.73 : 2,983.22 = 1,277.53 : x
  2. Step 2: Convert to fraction form
    2,161.73/2,983.22 = 1,277.53/x
  3. Step 3: Cross multiply
    2,161.73x = 2,983.22 × 1,277.53
  4. Step 4: Simplify right side
    2,161.73x = 3,811,143.99
  5. Step 5: Solve for x
    x = 3,811,143.99/2,161.73
  6. Step 6: Final answer
    x = 1,763.01

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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.