Home / 7,971.78-11,957.19-3,041.92

Finding the Fourth Proportional to 7,971.78, 11,957.19 and 3,041.92

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Solution

The fourth proportional to 7,971.78, 11,957.19 and 3,041.92 is: 4,562.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,971.78 : 11,957.19 = 3,041.92 : x
  2. Step 2: Convert to fraction form
    7,971.78/11,957.19 = 3,041.92/x
  3. Step 3: Cross multiply
    7,971.78x = 11,957.19 × 3,041.92
  4. Step 4: Simplify right side
    7,971.78x = 36,372,815.40
  5. Step 5: Solve for x
    x = 36,372,815.40/7,971.78
  6. Step 6: Final answer
    x = 4,562.70

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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.