Home / 5,186.79-7,157.73-2,948.66

Finding the Fourth Proportional to 5,186.79, 7,157.73 and 2,948.66

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Solution

The fourth proportional to 5,186.79, 7,157.73 and 2,948.66 is: 4,069.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,186.79 : 7,157.73 = 2,948.66 : x
  2. Step 2: Convert to fraction form
    5,186.79/7,157.73 = 2,948.66/x
  3. Step 3: Cross multiply
    5,186.79x = 7,157.73 × 2,948.66
  4. Step 4: Simplify right side
    5,186.79x = 21,105,723.33
  5. Step 5: Solve for x
    x = 21,105,723.33/5,186.79
  6. Step 6: Final answer
    x = 4,069.13

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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.