Home / 7,985.73-11,021.40-4,629.60

Finding the Fourth Proportional to 7,985.73, 11,021.40 and 4,629.60

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Solution

The fourth proportional to 7,985.73, 11,021.40 and 4,629.60 is: 6,389.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,985.73 : 11,021.40 = 4,629.60 : x
  2. Step 2: Convert to fraction form
    7,985.73/11,021.40 = 4,629.60/x
  3. Step 3: Cross multiply
    7,985.73x = 11,021.40 × 4,629.60
  4. Step 4: Simplify right side
    7,985.73x = 51,024,673.44
  5. Step 5: Solve for x
    x = 51,024,673.44/7,985.73
  6. Step 6: Final answer
    x = 6,389.48

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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.