Home / 5,186.39-7,157.64-2,948.97

Finding the Fourth Proportional to 5,186.39, 7,157.64 and 2,948.97

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Solution

The fourth proportional to 5,186.39, 7,157.64 and 2,948.97 is: 4,069.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,186.39 : 7,157.64 = 2,948.97 : x
  2. Step 2: Convert to fraction form
    5,186.39/7,157.64 = 2,948.97/x
  3. Step 3: Cross multiply
    5,186.39x = 7,157.64 × 2,948.97
  4. Step 4: Simplify right side
    5,186.39x = 21,107,665.63
  5. Step 5: Solve for x
    x = 21,107,665.63/5,186.39
  6. Step 6: Final answer
    x = 4,069.82

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1.5x scale

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.