Home / 1,323.58-1,986.18-543.95

Finding the Fourth Proportional to 1,323.58, 1,986.18 and 543.95

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Solution

The fourth proportional to 1,323.58, 1,986.18 and 543.95 is: 816.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,323.58 : 1,986.18 = 543.95 : x
  2. Step 2: Convert to fraction form
    1,323.58/1,986.18 = 543.95/x
  3. Step 3: Cross multiply
    1,323.58x = 1,986.18 × 543.95
  4. Step 4: Simplify right side
    1,323.58x = 1,080,379.89
  5. Step 5: Solve for x
    x = 1,080,379.89/1,323.58
  6. Step 6: Final answer
    x = 816.26

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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.