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Finding the Fourth Proportional to 4,164.40, 6,239.40 and 3,516.40

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Solution

The fourth proportional to 4,164.40, 6,239.40 and 3,516.40 is: 5,268.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,164.40 : 6,239.40 = 3,516.40 : x
  2. Step 2: Convert to fraction form
    4,164.40/6,239.40 = 3,516.40/x
  3. Step 3: Cross multiply
    4,164.40x = 6,239.40 × 3,516.40
  4. Step 4: Simplify right side
    4,164.40x = 21,940,226.16
  5. Step 5: Solve for x
    x = 21,940,226.16/4,164.40
  6. Step 6: Final answer
    x = 5,268.52

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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.