Home / 1,895.39-2,839.50-1,278.02

Finding the Fourth Proportional to 1,895.39, 2,839.50 and 1,278.02

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Solution

The fourth proportional to 1,895.39, 2,839.50 and 1,278.02 is: 1,914.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,895.39 : 2,839.50 = 1,278.02 : x
  2. Step 2: Convert to fraction form
    1,895.39/2,839.50 = 1,278.02/x
  3. Step 3: Cross multiply
    1,895.39x = 2,839.50 × 1,278.02
  4. Step 4: Simplify right side
    1,895.39x = 3,628,923.59
  5. Step 5: Solve for x
    x = 3,628,923.59/1,895.39
  6. Step 6: Final answer
    x = 1,914.61

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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.