Home / 2,720.60-4,078.08-1,625.48

Finding the Fourth Proportional to 2,720.60, 4,078.08 and 1,625.48

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Solution

The fourth proportional to 2,720.60, 4,078.08 and 1,625.48 is: 2,436.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,720.60 : 4,078.08 = 1,625.48 : x
  2. Step 2: Convert to fraction form
    2,720.60/4,078.08 = 1,625.48/x
  3. Step 3: Cross multiply
    2,720.60x = 4,078.08 × 1,625.48
  4. Step 4: Simplify right side
    2,720.60x = 6,628,837.48
  5. Step 5: Solve for x
    x = 6,628,837.48/2,720.60
  6. Step 6: Final answer
    x = 2,436.54

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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.