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Finding the Fourth Proportional to 4,275, 6,412.80 and 1,197.24

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Solution

The fourth proportional to 4,275, 6,412.80 and 1,197.24 is: 1,795.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,275 : 6,412.80 = 1,197.24 : x
  2. Step 2: Convert to fraction form
    4,275/6,412.80 = 1,197.24/x
  3. Step 3: Cross multiply
    4,275x = 6,412.80 × 1,197.24
  4. Step 4: Simplify right side
    4,275x = 7,677,660.67
  5. Step 5: Solve for x
    x = 7,677,660.67/4,275
  6. Step 6: Final answer
    x = 1,795.94

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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.