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Finding the Fourth Proportional to 3,765.58, 5,646.18 and 1,425.77

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Solution

The fourth proportional to 3,765.58, 5,646.18 and 1,425.77 is: 2,137.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,765.58 : 5,646.18 = 1,425.77 : x
  2. Step 2: Convert to fraction form
    3,765.58/5,646.18 = 1,425.77/x
  3. Step 3: Cross multiply
    3,765.58x = 5,646.18 × 1,425.77
  4. Step 4: Simplify right side
    3,765.58x = 8,050,154.06
  5. Step 5: Solve for x
    x = 8,050,154.06/3,765.58
  6. Step 6: Final answer
    x = 2,137.83

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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.