Home / 7,979.90-11,953.67-3,699.61

Finding the Fourth Proportional to 7,979.90, 11,953.67 and 3,699.61

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Solution

The fourth proportional to 7,979.90, 11,953.67 and 3,699.61 is: 5,541.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,979.90 : 11,953.67 = 3,699.61 : x
  2. Step 2: Convert to fraction form
    7,979.90/11,953.67 = 3,699.61/x
  3. Step 3: Cross multiply
    7,979.90x = 11,953.67 × 3,699.61
  4. Step 4: Simplify right side
    7,979.90x = 44,223,853.21
  5. Step 5: Solve for x
    x = 44,223,853.21/7,979.90
  6. Step 6: Final answer
    x = 5,541.91

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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.