Home / 1,789.58-2,467.02-1,291.43

Finding the Fourth Proportional to 1,789.58, 2,467.02 and 1,291.43

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Solution

The fourth proportional to 1,789.58, 2,467.02 and 1,291.43 is: 1,780.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,789.58 : 2,467.02 = 1,291.43 : x
  2. Step 2: Convert to fraction form
    1,789.58/2,467.02 = 1,291.43/x
  3. Step 3: Cross multiply
    1,789.58x = 2,467.02 × 1,291.43
  4. Step 4: Simplify right side
    1,789.58x = 3,185,983.64
  5. Step 5: Solve for x
    x = 3,185,983.64/1,789.58
  6. Step 6: Final answer
    x = 1,780.30

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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.