Home / 3,137.70-4,320.14-2,664.60

Finding the Fourth Proportional to 3,137.70, 4,320.14 and 2,664.60

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Solution

The fourth proportional to 3,137.70, 4,320.14 and 2,664.60 is: 3,668.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,137.70 : 4,320.14 = 2,664.60 : x
  2. Step 2: Convert to fraction form
    3,137.70/4,320.14 = 2,664.60/x
  3. Step 3: Cross multiply
    3,137.70x = 4,320.14 × 2,664.60
  4. Step 4: Simplify right side
    3,137.70x = 11,511,445.04
  5. Step 5: Solve for x
    x = 11,511,445.04/3,137.70
  6. Step 6: Final answer
    x = 3,668.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.