Home / 1,519.67-2,276.31-698.62

Finding the Fourth Proportional to 1,519.67, 2,276.31 and 698.62

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Solution

The fourth proportional to 1,519.67, 2,276.31 and 698.62 is: 1,046.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,519.67 : 2,276.31 = 698.62 : x
  2. Step 2: Convert to fraction form
    1,519.67/2,276.31 = 698.62/x
  3. Step 3: Cross multiply
    1,519.67x = 2,276.31 × 698.62
  4. Step 4: Simplify right side
    1,519.67x = 1,590,275.69
  5. Step 5: Solve for x
    x = 1,590,275.69/1,519.67
  6. Step 6: Final answer
    x = 1,046.46

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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.