Home / 3,860.60-5,789.36-1,394.08

Finding the Fourth Proportional to 3,860.60, 5,789.36 and 1,394.08

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Solution

The fourth proportional to 3,860.60, 5,789.36 and 1,394.08 is: 2,090.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,860.60 : 5,789.36 = 1,394.08 : x
  2. Step 2: Convert to fraction form
    3,860.60/5,789.36 = 1,394.08/x
  3. Step 3: Cross multiply
    3,860.60x = 5,789.36 × 1,394.08
  4. Step 4: Simplify right side
    3,860.60x = 8,070,820.00
  5. Step 5: Solve for x
    x = 8,070,820.00/3,860.60
  6. Step 6: Final answer
    x = 2,090.56

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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.