Home / 1,271.95-1,905.63-1,067.83

Finding the Fourth Proportional to 1,271.95, 1,905.63 and 1,067.83

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Solution

The fourth proportional to 1,271.95, 1,905.63 and 1,067.83 is: 1,599.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,271.95 : 1,905.63 = 1,067.83 : x
  2. Step 2: Convert to fraction form
    1,271.95/1,905.63 = 1,067.83/x
  3. Step 3: Cross multiply
    1,271.95x = 1,905.63 × 1,067.83
  4. Step 4: Simplify right side
    1,271.95x = 2,034,888.88
  5. Step 5: Solve for x
    x = 2,034,888.88/1,271.95
  6. Step 6: Final answer
    x = 1,599.82

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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.