Home / 5,108.81-7,656.38-2,732.01

Finding the Fourth Proportional to 5,108.81, 7,656.38 and 2,732.01

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Solution

The fourth proportional to 5,108.81, 7,656.38 and 2,732.01 is: 4,094.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,108.81 : 7,656.38 = 2,732.01 : x
  2. Step 2: Convert to fraction form
    5,108.81/7,656.38 = 2,732.01/x
  3. Step 3: Cross multiply
    5,108.81x = 7,656.38 × 2,732.01
  4. Step 4: Simplify right side
    5,108.81x = 20,917,293.06
  5. Step 5: Solve for x
    x = 20,917,293.06/5,108.81
  6. Step 6: Final answer
    x = 4,094.36

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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.