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Finding the Fourth Proportional to 3,903.78, 5,854.86 and 1,437.96

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Solution

The fourth proportional to 3,903.78, 5,854.86 and 1,437.96 is: 2,156.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,903.78 : 5,854.86 = 1,437.96 : x
  2. Step 2: Convert to fraction form
    3,903.78/5,854.86 = 1,437.96/x
  3. Step 3: Cross multiply
    3,903.78x = 5,854.86 × 1,437.96
  4. Step 4: Simplify right side
    3,903.78x = 8,419,054.49
  5. Step 5: Solve for x
    x = 8,419,054.49/3,903.78
  6. Step 6: Final answer
    x = 2,156.64

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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.