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Finding the Fourth Proportional to 3,900.02, 5,850.61 and 1,434.65

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Solution

The fourth proportional to 3,900.02, 5,850.61 and 1,434.65 is: 2,152.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,900.02 : 5,850.61 = 1,434.65 : x
  2. Step 2: Convert to fraction form
    3,900.02/5,850.61 = 1,434.65/x
  3. Step 3: Cross multiply
    3,900.02x = 5,850.61 × 1,434.65
  4. Step 4: Simplify right side
    3,900.02x = 8,393,577.64
  5. Step 5: Solve for x
    x = 8,393,577.64/3,900.02
  6. Step 6: Final answer
    x = 2,152.19

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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.