Home / 1,729.58-2,387.36-1,067.40

Finding the Fourth Proportional to 1,729.58, 2,387.36 and 1,067.40

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Solution

The fourth proportional to 1,729.58, 2,387.36 and 1,067.40 is: 1,473.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,729.58 : 2,387.36 = 1,067.40 : x
  2. Step 2: Convert to fraction form
    1,729.58/2,387.36 = 1,067.40/x
  3. Step 3: Cross multiply
    1,729.58x = 2,387.36 × 1,067.40
  4. Step 4: Simplify right side
    1,729.58x = 2,548,268.06
  5. Step 5: Solve for x
    x = 2,548,268.06/1,729.58
  6. Step 6: Final answer
    x = 1,473.35

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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.