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Finding the Fourth Proportional to 5,230.94, 7,218.87 and 2,873.30

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Solution

The fourth proportional to 5,230.94, 7,218.87 and 2,873.30 is: 3,965.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,230.94 : 7,218.87 = 2,873.30 : x
  2. Step 2: Convert to fraction form
    5,230.94/7,218.87 = 2,873.30/x
  3. Step 3: Cross multiply
    5,230.94x = 7,218.87 × 2,873.30
  4. Step 4: Simplify right side
    5,230.94x = 20,741,979.17
  5. Step 5: Solve for x
    x = 20,741,979.17/5,230.94
  6. Step 6: Final answer
    x = 3,965.25

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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.