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Finding the Fourth Proportional to 1,323.68, 1,824.54 and 1,176.08

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Solution

The fourth proportional to 1,323.68, 1,824.54 and 1,176.08 is: 1,621.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,323.68 : 1,824.54 = 1,176.08 : x
  2. Step 2: Convert to fraction form
    1,323.68/1,824.54 = 1,176.08/x
  3. Step 3: Cross multiply
    1,323.68x = 1,824.54 × 1,176.08
  4. Step 4: Simplify right side
    1,323.68x = 2,145,805.00
  5. Step 5: Solve for x
    x = 2,145,805.00/1,323.68
  6. Step 6: Final answer
    x = 1,621.09

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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.