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Finding the Fourth Proportional to 3,897.56, 5,846.28 and 1,161.56

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Solution

The fourth proportional to 3,897.56, 5,846.28 and 1,161.56 is: 1,742.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,897.56 : 5,846.28 = 1,161.56 : x
  2. Step 2: Convert to fraction form
    3,897.56/5,846.28 = 1,161.56/x
  3. Step 3: Cross multiply
    3,897.56x = 5,846.28 × 1,161.56
  4. Step 4: Simplify right side
    3,897.56x = 6,790,805.00
  5. Step 5: Solve for x
    x = 6,790,805.00/3,897.56
  6. Step 6: Final answer
    x = 1,742.32

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1.5x scale

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.