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Finding the Fourth Proportional to 5,754.53, 8,631.90 and 1,805.70

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Solution

The fourth proportional to 5,754.53, 8,631.90 and 1,805.70 is: 2,708.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,754.53 : 8,631.90 = 1,805.70 : x
  2. Step 2: Convert to fraction form
    5,754.53/8,631.90 = 1,805.70/x
  3. Step 3: Cross multiply
    5,754.53x = 8,631.90 × 1,805.70
  4. Step 4: Simplify right side
    5,754.53x = 15,586,621.83
  5. Step 5: Solve for x
    x = 15,586,621.83/5,754.53
  6. Step 6: Final answer
    x = 2,708.58

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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.