Home / 7,979.08-11,968.82-2,432.40

Finding the Fourth Proportional to 7,979.08, 11,968.82 and 2,432.40

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Solution

The fourth proportional to 7,979.08, 11,968.82 and 2,432.40 is: 3,648.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,979.08 : 11,968.82 = 2,432.40 : x
  2. Step 2: Convert to fraction form
    7,979.08/11,968.82 = 2,432.40/x
  3. Step 3: Cross multiply
    7,979.08x = 11,968.82 × 2,432.40
  4. Step 4: Simplify right side
    7,979.08x = 29,112,957.77
  5. Step 5: Solve for x
    x = 29,112,957.77/7,979.08
  6. Step 6: Final answer
    x = 3,648.66

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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.