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Finding the Fourth Proportional to 5,283.26, 7,919.28 and 1,994.96

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Solution

The fourth proportional to 5,283.26, 7,919.28 and 1,994.96 is: 2,990.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,283.26 : 7,919.28 = 1,994.96 : x
  2. Step 2: Convert to fraction form
    5,283.26/7,919.28 = 1,994.96/x
  3. Step 3: Cross multiply
    5,283.26x = 7,919.28 × 1,994.96
  4. Step 4: Simplify right side
    5,283.26x = 15,798,646.83
  5. Step 5: Solve for x
    x = 15,798,646.83/5,283.26
  6. Step 6: Final answer
    x = 2,990.32

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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.