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Finding the Fourth Proportional to 1,829.08, 2,744.45 and 775.18

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Solution

The fourth proportional to 1,829.08, 2,744.45 and 775.18 is: 1,163.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,829.08 : 2,744.45 = 775.18 : x
  2. Step 2: Convert to fraction form
    1,829.08/2,744.45 = 775.18/x
  3. Step 3: Cross multiply
    1,829.08x = 2,744.45 × 775.18
  4. Step 4: Simplify right side
    1,829.08x = 2,127,444.09
  5. Step 5: Solve for x
    x = 2,127,444.09/1,829.08
  6. Step 6: Final answer
    x = 1,163.12

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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.