Home / 4,087.61-5,640.85-2,409.09

Finding the Fourth Proportional to 4,087.61, 5,640.85 and 2,409.09

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Solution

The fourth proportional to 4,087.61, 5,640.85 and 2,409.09 is: 3,324.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,087.61 : 5,640.85 = 2,409.09 : x
  2. Step 2: Convert to fraction form
    4,087.61/5,640.85 = 2,409.09/x
  3. Step 3: Cross multiply
    4,087.61x = 5,640.85 × 2,409.09
  4. Step 4: Simplify right side
    4,087.61x = 13,589,275.08
  5. Step 5: Solve for x
    x = 13,589,275.08/4,087.61
  6. Step 6: Final answer
    x = 3,324.50

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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.