Home / 5,109.33-7,071.12-4,986.62

Finding the Fourth Proportional to 5,109.33, 7,071.12 and 4,986.62

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Solution

The fourth proportional to 5,109.33, 7,071.12 and 4,986.62 is: 6,901.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,109.33 : 7,071.12 = 4,986.62 : x
  2. Step 2: Convert to fraction form
    5,109.33/7,071.12 = 4,986.62/x
  3. Step 3: Cross multiply
    5,109.33x = 7,071.12 × 4,986.62
  4. Step 4: Simplify right side
    5,109.33x = 35,260,953.06
  5. Step 5: Solve for x
    x = 35,260,953.06/5,109.33
  6. Step 6: Final answer
    x = 6,901.29

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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.