Home / 2,420.89-3,629.51-1,727.12

Finding the Fourth Proportional to 2,420.89, 3,629.51 and 1,727.12

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Solution

The fourth proportional to 2,420.89, 3,629.51 and 1,727.12 is: 2,589.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,420.89 : 3,629.51 = 1,727.12 : x
  2. Step 2: Convert to fraction form
    2,420.89/3,629.51 = 1,727.12/x
  3. Step 3: Cross multiply
    2,420.89x = 3,629.51 × 1,727.12
  4. Step 4: Simplify right side
    2,420.89x = 6,268,606.23
  5. Step 5: Solve for x
    x = 6,268,606.23/2,420.89
  6. Step 6: Final answer
    x = 2,589.38

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1.5x scale

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.