Home / 4,465.30-6,678.81-3,218.71

Finding the Fourth Proportional to 4,465.30, 6,678.81 and 3,218.71

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Solution

The fourth proportional to 4,465.30, 6,678.81 and 3,218.71 is: 4,814.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,465.30 : 6,678.81 = 3,218.71 : x
  2. Step 2: Convert to fraction form
    4,465.30/6,678.81 = 3,218.71/x
  3. Step 3: Cross multiply
    4,465.30x = 6,678.81 × 3,218.71
  4. Step 4: Simplify right side
    4,465.30x = 21,497,152.54
  5. Step 5: Solve for x
    x = 21,497,152.54/4,465.30
  6. Step 6: Final answer
    x = 4,814.27

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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.