Home / 1,825.85-2,740.59-1,240.89

Finding the Fourth Proportional to 1,825.85, 2,740.59 and 1,240.89

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Solution

The fourth proportional to 1,825.85, 2,740.59 and 1,240.89 is: 1,862.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,825.85 : 2,740.59 = 1,240.89 : x
  2. Step 2: Convert to fraction form
    1,825.85/2,740.59 = 1,240.89/x
  3. Step 3: Cross multiply
    1,825.85x = 2,740.59 × 1,240.89
  4. Step 4: Simplify right side
    1,825.85x = 3,400,770.73
  5. Step 5: Solve for x
    x = 3,400,770.73/1,825.85
  6. Step 6: Final answer
    x = 1,862.57

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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.