Home / 5,516.15-8,274.35-1,620.68

Finding the Fourth Proportional to 5,516.15, 8,274.35 and 1,620.68

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Solution

The fourth proportional to 5,516.15, 8,274.35 and 1,620.68 is: 2,431.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,516.15 : 8,274.35 = 1,620.68 : x
  2. Step 2: Convert to fraction form
    5,516.15/8,274.35 = 1,620.68/x
  3. Step 3: Cross multiply
    5,516.15x = 8,274.35 × 1,620.68
  4. Step 4: Simplify right side
    5,516.15x = 13,410,036.24
  5. Step 5: Solve for x
    x = 13,410,036.24/5,516.15
  6. Step 6: Final answer
    x = 2,431.05

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.