Home / 2,629.02-3,627.81-1,509.78

Finding the Fourth Proportional to 2,629.02, 3,627.81 and 1,509.78

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Solution

The fourth proportional to 2,629.02, 3,627.81 and 1,509.78 is: 2,083.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,629.02 : 3,627.81 = 1,509.78 : x
  2. Step 2: Convert to fraction form
    2,629.02/3,627.81 = 1,509.78/x
  3. Step 3: Cross multiply
    2,629.02x = 3,627.81 × 1,509.78
  4. Step 4: Simplify right side
    2,629.02x = 5,477,194.98
  5. Step 5: Solve for x
    x = 5,477,194.98/2,629.02
  6. Step 6: Final answer
    x = 2,083.36

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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.