Home / 5,104.16-7,043.28-2,979.60

Finding the Fourth Proportional to 5,104.16, 7,043.28 and 2,979.60

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Solution

The fourth proportional to 5,104.16, 7,043.28 and 2,979.60 is: 4,111.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,104.16 : 7,043.28 = 2,979.60 : x
  2. Step 2: Convert to fraction form
    5,104.16/7,043.28 = 2,979.60/x
  3. Step 3: Cross multiply
    5,104.16x = 7,043.28 × 2,979.60
  4. Step 4: Simplify right side
    5,104.16x = 20,986,157.09
  5. Step 5: Solve for x
    x = 20,986,157.09/5,104.16
  6. Step 6: Final answer
    x = 4,111.58

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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.