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Finding the Fourth Proportional to 2,775.80, 4,163.75 and 1,551.01

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Solution

The fourth proportional to 2,775.80, 4,163.75 and 1,551.01 is: 2,326.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,775.80 : 4,163.75 = 1,551.01 : x
  2. Step 2: Convert to fraction form
    2,775.80/4,163.75 = 1,551.01/x
  3. Step 3: Cross multiply
    2,775.80x = 4,163.75 × 1,551.01
  4. Step 4: Simplify right side
    2,775.80x = 6,457,997.07
  5. Step 5: Solve for x
    x = 6,457,997.07/2,775.80
  6. Step 6: Final answer
    x = 2,326.54

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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.