Home / 1,323.54-1,986.66-707.22

Finding the Fourth Proportional to 1,323.54, 1,986.66 and 707.22

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Solution

The fourth proportional to 1,323.54, 1,986.66 and 707.22 is: 1,061.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,323.54 : 1,986.66 = 707.22 : x
  2. Step 2: Convert to fraction form
    1,323.54/1,986.66 = 707.22/x
  3. Step 3: Cross multiply
    1,323.54x = 1,986.66 × 707.22
  4. Step 4: Simplify right side
    1,323.54x = 1,405,005.69
  5. Step 5: Solve for x
    x = 1,405,005.69/1,323.54
  6. Step 6: Final answer
    x = 1,061.55

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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.