Home / 5,230.15-7,217.63-2,872.33

Finding the Fourth Proportional to 5,230.15, 7,217.63 and 2,872.33

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Solution

The fourth proportional to 5,230.15, 7,217.63 and 2,872.33 is: 3,963.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,230.15 : 7,217.63 = 2,872.33 : x
  2. Step 2: Convert to fraction form
    5,230.15/7,217.63 = 2,872.33/x
  3. Step 3: Cross multiply
    5,230.15x = 7,217.63 × 2,872.33
  4. Step 4: Simplify right side
    5,230.15x = 20,731,415.18
  5. Step 5: Solve for x
    x = 20,731,415.18/5,230.15
  6. Step 6: Final answer
    x = 3,963.83

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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.