Home / 3,318.29-4,978.64-1,673.60

Finding the Fourth Proportional to 3,318.29, 4,978.64 and 1,673.60

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Solution

The fourth proportional to 3,318.29, 4,978.64 and 1,673.60 is: 2,511.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,318.29 : 4,978.64 = 1,673.60 : x
  2. Step 2: Convert to fraction form
    3,318.29/4,978.64 = 1,673.60/x
  3. Step 3: Cross multiply
    3,318.29x = 4,978.64 × 1,673.60
  4. Step 4: Simplify right side
    3,318.29x = 8,332,263.79
  5. Step 5: Solve for x
    x = 8,332,263.79/3,318.29
  6. Step 6: Final answer
    x = 2,511.01

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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.