Home / 5,204.34-7,806.60-1,308.78

Finding the Fourth Proportional to 5,204.34, 7,806.60 and 1,308.78

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Solution

The fourth proportional to 5,204.34, 7,806.60 and 1,308.78 is: 1,963.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,204.34 : 7,806.60 = 1,308.78 : x
  2. Step 2: Convert to fraction form
    5,204.34/7,806.60 = 1,308.78/x
  3. Step 3: Cross multiply
    5,204.34x = 7,806.60 × 1,308.78
  4. Step 4: Simplify right side
    5,204.34x = 10,217,121.95
  5. Step 5: Solve for x
    x = 10,217,121.95/5,204.34
  6. Step 6: Final answer
    x = 1,963.19

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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.