Home / 3,701.31-5,107.60-2,168.70

Finding the Fourth Proportional to 3,701.31, 5,107.60 and 2,168.70

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Solution

The fourth proportional to 3,701.31, 5,107.60 and 2,168.70 is: 2,992.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,701.31 : 5,107.60 = 2,168.70 : x
  2. Step 2: Convert to fraction form
    3,701.31/5,107.60 = 2,168.70/x
  3. Step 3: Cross multiply
    3,701.31x = 5,107.60 × 2,168.70
  4. Step 4: Simplify right side
    3,701.31x = 11,076,835.68
  5. Step 5: Solve for x
    x = 11,076,835.68/3,701.31
  6. Step 6: Final answer
    x = 2,992.68

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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.