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Finding the Fourth Proportional to 1,584.50, 2,375.88 and 543.92

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Solution

The fourth proportional to 1,584.50, 2,375.88 and 543.92 is: 815.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,584.50 : 2,375.88 = 543.92 : x
  2. Step 2: Convert to fraction form
    1,584.50/2,375.88 = 543.92/x
  3. Step 3: Cross multiply
    1,584.50x = 2,375.88 × 543.92
  4. Step 4: Simplify right side
    1,584.50x = 1,292,288.65
  5. Step 5: Solve for x
    x = 1,292,288.65/1,584.50
  6. Step 6: Final answer
    x = 815.58

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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.