Home / 3,306.89-4,953.72-1,989.92

Finding the Fourth Proportional to 3,306.89, 4,953.72 and 1,989.92

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Solution

The fourth proportional to 3,306.89, 4,953.72 and 1,989.92 is: 2,980.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,306.89 : 4,953.72 = 1,989.92 : x
  2. Step 2: Convert to fraction form
    3,306.89/4,953.72 = 1,989.92/x
  3. Step 3: Cross multiply
    3,306.89x = 4,953.72 × 1,989.92
  4. Step 4: Simplify right side
    3,306.89x = 9,857,481.73
  5. Step 5: Solve for x
    x = 9,857,481.73/3,306.89
  6. Step 6: Final answer
    x = 2,980.89

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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.