Home / 5,255.73-7,252.81-2,865.72

Finding the Fourth Proportional to 5,255.73, 7,252.81 and 2,865.72

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Solution

The fourth proportional to 5,255.73, 7,252.81 and 2,865.72 is: 3,954.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,255.73 : 7,252.81 = 2,865.72 : x
  2. Step 2: Convert to fraction form
    5,255.73/7,252.81 = 2,865.72/x
  3. Step 3: Cross multiply
    5,255.73x = 7,252.81 × 2,865.72
  4. Step 4: Simplify right side
    5,255.73x = 20,784,542.71
  5. Step 5: Solve for x
    x = 20,784,542.71/5,255.73
  6. Step 6: Final answer
    x = 3,954.64

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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.