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Finding the Fourth Proportional to 1,825.91, 2,519.90 and 1,040.01

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Solution

The fourth proportional to 1,825.91, 2,519.90 and 1,040.01 is: 1,435.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,825.91 : 2,519.90 = 1,040.01 : x
  2. Step 2: Convert to fraction form
    1,825.91/2,519.90 = 1,040.01/x
  3. Step 3: Cross multiply
    1,825.91x = 2,519.90 × 1,040.01
  4. Step 4: Simplify right side
    1,825.91x = 2,620,716.00
  5. Step 5: Solve for x
    x = 2,620,716.00/1,825.91
  6. Step 6: Final answer
    x = 1,435.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.