Home / 1,518.31-2,277.37-696.43

Finding the Fourth Proportional to 1,518.31, 2,277.37 and 696.43

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Solution

The fourth proportional to 1,518.31, 2,277.37 and 696.43 is: 1,044.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,518.31 : 2,277.37 = 696.43 : x
  2. Step 2: Convert to fraction form
    1,518.31/2,277.37 = 696.43/x
  3. Step 3: Cross multiply
    1,518.31x = 2,277.37 × 696.43
  4. Step 4: Simplify right side
    1,518.31x = 1,586,028.79
  5. Step 5: Solve for x
    x = 1,586,028.79/1,518.31
  6. Step 6: Final answer
    x = 1,044.60

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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.