Home / 2,551.22-3,821.96-1,728.08

Finding the Fourth Proportional to 2,551.22, 3,821.96 and 1,728.08

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Solution

The fourth proportional to 2,551.22, 3,821.96 and 1,728.08 is: 2,588.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,551.22 : 3,821.96 = 1,728.08 : x
  2. Step 2: Convert to fraction form
    2,551.22/3,821.96 = 1,728.08/x
  3. Step 3: Cross multiply
    2,551.22x = 3,821.96 × 1,728.08
  4. Step 4: Simplify right side
    2,551.22x = 6,604,652.64
  5. Step 5: Solve for x
    x = 6,604,652.64/2,551.22
  6. Step 6: Final answer
    x = 2,588.82

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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.