Home / 3,416.40-5,134.08-1,857.60

Finding the Fourth Proportional to 3,416.40, 5,134.08 and 1,857.60

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Solution

The fourth proportional to 3,416.40, 5,134.08 and 1,857.60 is: 2,791.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,416.40 : 5,134.08 = 1,857.60 : x
  2. Step 2: Convert to fraction form
    3,416.40/5,134.08 = 1,857.60/x
  3. Step 3: Cross multiply
    3,416.40x = 5,134.08 × 1,857.60
  4. Step 4: Simplify right side
    3,416.40x = 9,537,067.01
  5. Step 5: Solve for x
    x = 9,537,067.01/3,416.40
  6. Step 6: Final answer
    x = 2,791.55

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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.