Home / 1,825.78-2,519.49-1,127.02

Finding the Fourth Proportional to 1,825.78, 2,519.49 and 1,127.02

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Solution

The fourth proportional to 1,825.78, 2,519.49 and 1,127.02 is: 1,555.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,825.78 : 2,519.49 = 1,127.02 : x
  2. Step 2: Convert to fraction form
    1,825.78/2,519.49 = 1,127.02/x
  3. Step 3: Cross multiply
    1,825.78x = 2,519.49 × 1,127.02
  4. Step 4: Simplify right side
    1,825.78x = 2,839,515.62
  5. Step 5: Solve for x
    x = 2,839,515.62/1,825.78
  6. Step 6: Final answer
    x = 1,555.23

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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.