Home / 5,230.31-7,217.83-2,872.60

Finding the Fourth Proportional to 5,230.31, 7,217.83 and 2,872.60

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Solution

The fourth proportional to 5,230.31, 7,217.83 and 2,872.60 is: 3,964.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,230.31 : 7,217.83 = 2,872.60 : x
  2. Step 2: Convert to fraction form
    5,230.31/7,217.83 = 2,872.60/x
  3. Step 3: Cross multiply
    5,230.31x = 7,217.83 × 2,872.60
  4. Step 4: Simplify right side
    5,230.31x = 20,733,938.46
  5. Step 5: Solve for x
    x = 20,733,938.46/5,230.31
  6. Step 6: Final answer
    x = 3,964.19

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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.