Home / 5,308.18-7,960.38-2,020.40

Finding the Fourth Proportional to 5,308.18, 7,960.38 and 2,020.40

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Solution

The fourth proportional to 5,308.18, 7,960.38 and 2,020.40 is: 3,029.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,308.18 : 7,960.38 = 2,020.40 : x
  2. Step 2: Convert to fraction form
    5,308.18/7,960.38 = 2,020.40/x
  3. Step 3: Cross multiply
    5,308.18x = 7,960.38 × 2,020.40
  4. Step 4: Simplify right side
    5,308.18x = 16,083,151.75
  5. Step 5: Solve for x
    x = 16,083,151.75/5,308.18
  6. Step 6: Final answer
    x = 3,029.88

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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.