Home / 5,336.91-7,365.20-2,979

Finding the Fourth Proportional to 5,336.91, 7,365.20 and 2,979

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Solution

The fourth proportional to 5,336.91, 7,365.20 and 2,979 is: 4,111.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,336.91 : 7,365.20 = 2,979 : x
  2. Step 2: Convert to fraction form
    5,336.91/7,365.20 = 2,979/x
  3. Step 3: Cross multiply
    5,336.91x = 7,365.20 × 2,979
  4. Step 4: Simplify right side
    5,336.91x = 21,940,915.91
  5. Step 5: Solve for x
    x = 21,940,915.91/5,336.91
  6. Step 6: Final answer
    x = 4,111.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.