Home / 3,125.14-4,309.82-2,705.30

Finding the Fourth Proportional to 3,125.14, 4,309.82 and 2,705.30

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Solution

The fourth proportional to 3,125.14, 4,309.82 and 2,705.30 is: 3,730.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,125.14 : 4,309.82 = 2,705.30 : x
  2. Step 2: Convert to fraction form
    3,125.14/4,309.82 = 2,705.30/x
  3. Step 3: Cross multiply
    3,125.14x = 4,309.82 × 2,705.30
  4. Step 4: Simplify right side
    3,125.14x = 11,659,356.05
  5. Step 5: Solve for x
    x = 11,659,356.05/3,125.14
  6. Step 6: Final answer
    x = 3,730.83

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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.