Home / 1,811.16-2,718.36-1,263.74

Finding the Fourth Proportional to 1,811.16, 2,718.36 and 1,263.74

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Solution

The fourth proportional to 1,811.16, 2,718.36 and 1,263.74 is: 1,896.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,811.16 : 2,718.36 = 1,263.74 : x
  2. Step 2: Convert to fraction form
    1,811.16/2,718.36 = 1,263.74/x
  3. Step 3: Cross multiply
    1,811.16x = 2,718.36 × 1,263.74
  4. Step 4: Simplify right side
    1,811.16x = 3,435,286.67
  5. Step 5: Solve for x
    x = 3,435,286.67/1,811.16
  6. Step 6: Final answer
    x = 1,896.73

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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.