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Finding the Fourth Proportional to 5,327.88, 7,991.64 and 1,865.04

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Solution

The fourth proportional to 5,327.88, 7,991.64 and 1,865.04 is: 2,797.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,327.88 : 7,991.64 = 1,865.04 : x
  2. Step 2: Convert to fraction form
    5,327.88/7,991.64 = 1,865.04/x
  3. Step 3: Cross multiply
    5,327.88x = 7,991.64 × 1,865.04
  4. Step 4: Simplify right side
    5,327.88x = 14,904,728.27
  5. Step 5: Solve for x
    x = 14,904,728.27/5,327.88
  6. Step 6: Final answer
    x = 2,797.50

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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.