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Finding the Fourth Proportional to 5,754.19, 8,631.28 and 3,900.71

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Solution

The fourth proportional to 5,754.19, 8,631.28 and 3,900.71 is: 5,851.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,754.19 : 8,631.28 = 3,900.71 : x
  2. Step 2: Convert to fraction form
    5,754.19/8,631.28 = 3,900.71/x
  3. Step 3: Cross multiply
    5,754.19x = 8,631.28 × 3,900.71
  4. Step 4: Simplify right side
    5,754.19x = 33,668,076.17
  5. Step 5: Solve for x
    x = 33,668,076.17/5,754.19
  6. Step 6: Final answer
    x = 5,851.05

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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.