Home / 1,323.29-1,825.76-1,042.65

Finding the Fourth Proportional to 1,323.29, 1,825.76 and 1,042.65

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Solution

The fourth proportional to 1,323.29, 1,825.76 and 1,042.65 is: 1,438.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,323.29 : 1,825.76 = 1,042.65 : x
  2. Step 2: Convert to fraction form
    1,323.29/1,825.76 = 1,042.65/x
  3. Step 3: Cross multiply
    1,323.29x = 1,825.76 × 1,042.65
  4. Step 4: Simplify right side
    1,323.29x = 1,903,627.85
  5. Step 5: Solve for x
    x = 1,903,627.85/1,323.29
  6. Step 6: Final answer
    x = 1,438.56

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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.