Home / 5,115.56-7,671.72-3,038.46

Finding the Fourth Proportional to 5,115.56, 7,671.72 and 3,038.46

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Solution

The fourth proportional to 5,115.56, 7,671.72 and 3,038.46 is: 4,556.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,115.56 : 7,671.72 = 3,038.46 : x
  2. Step 2: Convert to fraction form
    5,115.56/7,671.72 = 3,038.46/x
  3. Step 3: Cross multiply
    5,115.56x = 7,671.72 × 3,038.46
  4. Step 4: Simplify right side
    5,115.56x = 23,310,214.35
  5. Step 5: Solve for x
    x = 23,310,214.35/5,115.56
  6. Step 6: Final answer
    x = 4,556.73

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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.