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Finding the Fourth Proportional to 1,323.02, 1,825.81 and 798.75

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Solution

The fourth proportional to 1,323.02, 1,825.81 and 798.75 is: 1,102.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,323.02 : 1,825.81 = 798.75 : x
  2. Step 2: Convert to fraction form
    1,323.02/1,825.81 = 798.75/x
  3. Step 3: Cross multiply
    1,323.02x = 1,825.81 × 798.75
  4. Step 4: Simplify right side
    1,323.02x = 1,458,363.74
  5. Step 5: Solve for x
    x = 1,458,363.74/1,323.02
  6. Step 6: Final answer
    x = 1,102.30

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1.5x scale

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.