Home / 5,255.45-7,252.61-2,865.43

Finding the Fourth Proportional to 5,255.45, 7,252.61 and 2,865.43

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Solution

The fourth proportional to 5,255.45, 7,252.61 and 2,865.43 is: 3,954.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,255.45 : 7,252.61 = 2,865.43 : x
  2. Step 2: Convert to fraction form
    5,255.45/7,252.61 = 2,865.43/x
  3. Step 3: Cross multiply
    5,255.45x = 7,252.61 × 2,865.43
  4. Step 4: Simplify right side
    5,255.45x = 20,781,813.81
  5. Step 5: Solve for x
    x = 20,781,813.81/5,255.45
  6. Step 6: Final answer
    x = 3,954.33

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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.