Home / 7,822.07-11,732.19-3,141.89

Finding the Fourth Proportional to 7,822.07, 11,732.19 and 3,141.89

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Solution

The fourth proportional to 7,822.07, 11,732.19 and 3,141.89 is: 4,712.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,822.07 : 11,732.19 = 3,141.89 : x
  2. Step 2: Convert to fraction form
    7,822.07/11,732.19 = 3,141.89/x
  3. Step 3: Cross multiply
    7,822.07x = 11,732.19 × 3,141.89
  4. Step 4: Simplify right side
    7,822.07x = 36,861,217.18
  5. Step 5: Solve for x
    x = 36,861,217.18/7,822.07
  6. Step 6: Final answer
    x = 4,712.46

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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.