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Finding the Fourth Proportional to 1,323.97, 1,985.04 and 885.37

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Solution

The fourth proportional to 1,323.97, 1,985.04 and 885.37 is: 1,327.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,323.97 : 1,985.04 = 885.37 : x
  2. Step 2: Convert to fraction form
    1,323.97/1,985.04 = 885.37/x
  3. Step 3: Cross multiply
    1,323.97x = 1,985.04 × 885.37
  4. Step 4: Simplify right side
    1,323.97x = 1,757,494.86
  5. Step 5: Solve for x
    x = 1,757,494.86/1,323.97
  6. Step 6: Final answer
    x = 1,327.44

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1.5x scale

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.