Home / 3,407.64-5,112.84-1,327.80

Finding the Fourth Proportional to 3,407.64, 5,112.84 and 1,327.80

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Solution

The fourth proportional to 3,407.64, 5,112.84 and 1,327.80 is: 1,992.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,407.64 : 5,112.84 = 1,327.80 : x
  2. Step 2: Convert to fraction form
    3,407.64/5,112.84 = 1,327.80/x
  3. Step 3: Cross multiply
    3,407.64x = 5,112.84 × 1,327.80
  4. Step 4: Simplify right side
    3,407.64x = 6,788,828.95
  5. Step 5: Solve for x
    x = 6,788,828.95/3,407.64
  6. Step 6: Final answer
    x = 1,992.24

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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.