Home / 4,118.96-5,686.74-3,172.97

Finding the Fourth Proportional to 4,118.96, 5,686.74 and 3,172.97

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Solution

The fourth proportional to 4,118.96, 5,686.74 and 3,172.97 is: 4,380.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,118.96 : 5,686.74 = 3,172.97 : x
  2. Step 2: Convert to fraction form
    4,118.96/5,686.74 = 3,172.97/x
  3. Step 3: Cross multiply
    4,118.96x = 5,686.74 × 3,172.97
  4. Step 4: Simplify right side
    4,118.96x = 18,043,826.98
  5. Step 5: Solve for x
    x = 18,043,826.98/4,118.96
  6. Step 6: Final answer
    x = 4,380.68

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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.