Home / 5,238.51-7,229.08-2,880.73

Finding the Fourth Proportional to 5,238.51, 7,229.08 and 2,880.73

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Solution

The fourth proportional to 5,238.51, 7,229.08 and 2,880.73 is: 3,975.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,238.51 : 7,229.08 = 2,880.73 : x
  2. Step 2: Convert to fraction form
    5,238.51/7,229.08 = 2,880.73/x
  3. Step 3: Cross multiply
    5,238.51x = 7,229.08 × 2,880.73
  4. Step 4: Simplify right side
    5,238.51x = 20,825,027.63
  5. Step 5: Solve for x
    x = 20,825,027.63/5,238.51
  6. Step 6: Final answer
    x = 3,975.37

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Half scale
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Double scale
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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.