Home / 2,625.14-3,938.27-1,309.60

Finding the Fourth Proportional to 2,625.14, 3,938.27 and 1,309.60

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Solution

The fourth proportional to 2,625.14, 3,938.27 and 1,309.60 is: 1,964.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,625.14 : 3,938.27 = 1,309.60 : x
  2. Step 2: Convert to fraction form
    2,625.14/3,938.27 = 1,309.60/x
  3. Step 3: Cross multiply
    2,625.14x = 3,938.27 × 1,309.60
  4. Step 4: Simplify right side
    2,625.14x = 5,157,558.39
  5. Step 5: Solve for x
    x = 5,157,558.39/2,625.14
  6. Step 6: Final answer
    x = 1,964.68

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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.