Home / 5,185.39-7,156.26-2,947.97

Finding the Fourth Proportional to 5,185.39, 7,156.26 and 2,947.97

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Solution

The fourth proportional to 5,185.39, 7,156.26 and 2,947.97 is: 4,068.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,185.39 : 7,156.26 = 2,947.97 : x
  2. Step 2: Convert to fraction form
    5,185.39/7,156.26 = 2,947.97/x
  3. Step 3: Cross multiply
    5,185.39x = 7,156.26 × 2,947.97
  4. Step 4: Simplify right side
    5,185.39x = 21,096,404.01
  5. Step 5: Solve for x
    x = 21,096,404.01/5,185.39
  6. Step 6: Final answer
    x = 4,068.43

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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.