Home / 3,127.82-4,318.44-2,539.76

Finding the Fourth Proportional to 3,127.82, 4,318.44 and 2,539.76

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Solution

The fourth proportional to 3,127.82, 4,318.44 and 2,539.76 is: 3,506.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,127.82 : 4,318.44 = 2,539.76 : x
  2. Step 2: Convert to fraction form
    3,127.82/4,318.44 = 2,539.76/x
  3. Step 3: Cross multiply
    3,127.82x = 4,318.44 × 2,539.76
  4. Step 4: Simplify right side
    3,127.82x = 10,967,811.97
  5. Step 5: Solve for x
    x = 10,967,811.97/3,127.82
  6. Step 6: Final answer
    x = 3,506.53

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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.