Home / 5,230.58-7,218.12-2,872.70

Finding the Fourth Proportional to 5,230.58, 7,218.12 and 2,872.70

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Solution

The fourth proportional to 5,230.58, 7,218.12 and 2,872.70 is: 3,964.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,230.58 : 7,218.12 = 2,872.70 : x
  2. Step 2: Convert to fraction form
    5,230.58/7,218.12 = 2,872.70/x
  3. Step 3: Cross multiply
    5,230.58x = 7,218.12 × 2,872.70
  4. Step 4: Simplify right side
    5,230.58x = 20,735,493.32
  5. Step 5: Solve for x
    x = 20,735,493.32/5,230.58
  6. Step 6: Final answer
    x = 3,964.28

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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.