Home / 5,629.52-7,768.66-3,111.64

Finding the Fourth Proportional to 5,629.52, 7,768.66 and 3,111.64

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Solution

The fourth proportional to 5,629.52, 7,768.66 and 3,111.64 is: 4,294.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,629.52 : 7,768.66 = 3,111.64 : x
  2. Step 2: Convert to fraction form
    5,629.52/7,768.66 = 3,111.64/x
  3. Step 3: Cross multiply
    5,629.52x = 7,768.66 × 3,111.64
  4. Step 4: Simplify right side
    5,629.52x = 24,173,273.20
  5. Step 5: Solve for x
    x = 24,173,273.20/5,629.52
  6. Step 6: Final answer
    x = 4,294.02

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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.