Home / 3,318.38-4,980.65-1,676.08

Finding the Fourth Proportional to 3,318.38, 4,980.65 and 1,676.08

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Solution

The fourth proportional to 3,318.38, 4,980.65 and 1,676.08 is: 2,515.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,318.38 : 4,980.65 = 1,676.08 : x
  2. Step 2: Convert to fraction form
    3,318.38/4,980.65 = 1,676.08/x
  3. Step 3: Cross multiply
    3,318.38x = 4,980.65 × 1,676.08
  4. Step 4: Simplify right side
    3,318.38x = 8,347,947.02
  5. Step 5: Solve for x
    x = 8,347,947.02/3,318.38
  6. Step 6: Final answer
    x = 2,515.67

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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.