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Finding the Fourth Proportional to 1,830.81, 2,744.55 and 675.75

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Solution

The fourth proportional to 1,830.81, 2,744.55 and 675.75 is: 1,013.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,830.81 : 2,744.55 = 675.75 : x
  2. Step 2: Convert to fraction form
    1,830.81/2,744.55 = 675.75/x
  3. Step 3: Cross multiply
    1,830.81x = 2,744.55 × 675.75
  4. Step 4: Simplify right side
    1,830.81x = 1,854,629.66
  5. Step 5: Solve for x
    x = 1,854,629.66/1,830.81
  6. Step 6: Final answer
    x = 1,013.01

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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.