Home / 5,785.90-8,676.42-3,938.02

Finding the Fourth Proportional to 5,785.90, 8,676.42 and 3,938.02

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Solution

The fourth proportional to 5,785.90, 8,676.42 and 3,938.02 is: 5,905.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,785.90 : 8,676.42 = 3,938.02 : x
  2. Step 2: Convert to fraction form
    5,785.90/8,676.42 = 3,938.02/x
  3. Step 3: Cross multiply
    5,785.90x = 8,676.42 × 3,938.02
  4. Step 4: Simplify right side
    5,785.90x = 34,167,915.49
  5. Step 5: Solve for x
    x = 34,167,915.49/5,785.90
  6. Step 6: Final answer
    x = 5,905.38

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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.