Home / 1,954.95-2,698.29-1,291.83

Finding the Fourth Proportional to 1,954.95, 2,698.29 and 1,291.83

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Solution

The fourth proportional to 1,954.95, 2,698.29 and 1,291.83 is: 1,783.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,954.95 : 2,698.29 = 1,291.83 : x
  2. Step 2: Convert to fraction form
    1,954.95/2,698.29 = 1,291.83/x
  3. Step 3: Cross multiply
    1,954.95x = 2,698.29 × 1,291.83
  4. Step 4: Simplify right side
    1,954.95x = 3,485,731.97
  5. Step 5: Solve for x
    x = 3,485,731.97/1,954.95
  6. Step 6: Final answer
    x = 1,783.03

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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.