Home / 4,789.47-7,185.12-1,867.60

Finding the Fourth Proportional to 4,789.47, 7,185.12 and 1,867.60

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Solution

The fourth proportional to 4,789.47, 7,185.12 and 1,867.60 is: 2,801.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,789.47 : 7,185.12 = 1,867.60 : x
  2. Step 2: Convert to fraction form
    4,789.47/7,185.12 = 1,867.60/x
  3. Step 3: Cross multiply
    4,789.47x = 7,185.12 × 1,867.60
  4. Step 4: Simplify right side
    4,789.47x = 13,418,912.15
  5. Step 5: Solve for x
    x = 13,418,912.15/4,789.47
  6. Step 6: Final answer
    x = 2,801.75

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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.