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Finding the Fourth Proportional to 5,282.56, 7,923.84 and 1,994.24

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Solution

The fourth proportional to 5,282.56, 7,923.84 and 1,994.24 is: 2,991.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,282.56 : 7,923.84 = 1,994.24 : x
  2. Step 2: Convert to fraction form
    5,282.56/7,923.84 = 1,994.24/x
  3. Step 3: Cross multiply
    5,282.56x = 7,923.84 × 1,994.24
  4. Step 4: Simplify right side
    5,282.56x = 15,802,038.68
  5. Step 5: Solve for x
    x = 15,802,038.68/5,282.56
  6. Step 6: Final answer
    x = 2,991.36

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Similar ratio
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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.