Home / 3,171.70-4,750.35-1,630.90

Finding the Fourth Proportional to 3,171.70, 4,750.35 and 1,630.90

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Solution

The fourth proportional to 3,171.70, 4,750.35 and 1,630.90 is: 2,442.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,171.70 : 4,750.35 = 1,630.90 : x
  2. Step 2: Convert to fraction form
    3,171.70/4,750.35 = 1,630.90/x
  3. Step 3: Cross multiply
    3,171.70x = 4,750.35 × 1,630.90
  4. Step 4: Simplify right side
    3,171.70x = 7,747,345.82
  5. Step 5: Solve for x
    x = 7,747,345.82/3,171.70
  6. Step 6: Final answer
    x = 2,442.65

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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.