Home / 4,087.68-5,640.93-2,409.15

Finding the Fourth Proportional to 4,087.68, 5,640.93 and 2,409.15

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Solution

The fourth proportional to 4,087.68, 5,640.93 and 2,409.15 is: 3,324.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,087.68 : 5,640.93 = 2,409.15 : x
  2. Step 2: Convert to fraction form
    4,087.68/5,640.93 = 2,409.15/x
  3. Step 3: Cross multiply
    4,087.68x = 5,640.93 × 2,409.15
  4. Step 4: Simplify right side
    4,087.68x = 13,589,867.66
  5. Step 5: Solve for x
    x = 13,589,867.66/4,087.68
  6. Step 6: Final answer
    x = 3,324.59

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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.