Home / 1,324.25-1,986.99-675.44

Finding the Fourth Proportional to 1,324.25, 1,986.99 and 675.44

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Solution

The fourth proportional to 1,324.25, 1,986.99 and 675.44 is: 1,013.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,324.25 : 1,986.99 = 675.44 : x
  2. Step 2: Convert to fraction form
    1,324.25/1,986.99 = 675.44/x
  3. Step 3: Cross multiply
    1,324.25x = 1,986.99 × 675.44
  4. Step 4: Simplify right side
    1,324.25x = 1,342,094.96
  5. Step 5: Solve for x
    x = 1,342,094.96/1,324.25
  6. Step 6: Final answer
    x = 1,013.47

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1.5x scale

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.