Home / 1,958.02-2,704.97-1,287.41

Finding the Fourth Proportional to 1,958.02, 2,704.97 and 1,287.41

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Solution

The fourth proportional to 1,958.02, 2,704.97 and 1,287.41 is: 1,778.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,958.02 : 2,704.97 = 1,287.41 : x
  2. Step 2: Convert to fraction form
    1,958.02/2,704.97 = 1,287.41/x
  3. Step 3: Cross multiply
    1,958.02x = 2,704.97 × 1,287.41
  4. Step 4: Simplify right side
    1,958.02x = 3,482,395.12
  5. Step 5: Solve for x
    x = 3,482,395.12/1,958.02
  6. Step 6: Final answer
    x = 1,778.53

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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.