Home / 5,271.73-7,912.38-2,808.62

Finding the Fourth Proportional to 5,271.73, 7,912.38 and 2,808.62

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Solution

The fourth proportional to 5,271.73, 7,912.38 and 2,808.62 is: 4,215.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,271.73 : 7,912.38 = 2,808.62 : x
  2. Step 2: Convert to fraction form
    5,271.73/7,912.38 = 2,808.62/x
  3. Step 3: Cross multiply
    5,271.73x = 7,912.38 × 2,808.62
  4. Step 4: Simplify right side
    5,271.73x = 22,222,854.67
  5. Step 5: Solve for x
    x = 22,222,854.67/5,271.73
  6. Step 6: Final answer
    x = 4,215.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.