Home / 1,519.58-2,280.09-697.43

Finding the Fourth Proportional to 1,519.58, 2,280.09 and 697.43

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Solution

The fourth proportional to 1,519.58, 2,280.09 and 697.43 is: 1,046.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,519.58 : 2,280.09 = 697.43 : x
  2. Step 2: Convert to fraction form
    1,519.58/2,280.09 = 697.43/x
  3. Step 3: Cross multiply
    1,519.58x = 2,280.09 × 697.43
  4. Step 4: Simplify right side
    1,519.58x = 1,590,203.17
  5. Step 5: Solve for x
    x = 1,590,203.17/1,519.58
  6. Step 6: Final answer
    x = 1,046.48

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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.