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Finding the Fourth Proportional to 3,105.95, 4,657.95 and 1,025.48

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Solution

The fourth proportional to 3,105.95, 4,657.95 and 1,025.48 is: 1,537.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,105.95 : 4,657.95 = 1,025.48 : x
  2. Step 2: Convert to fraction form
    3,105.95/4,657.95 = 1,025.48/x
  3. Step 3: Cross multiply
    3,105.95x = 4,657.95 × 1,025.48
  4. Step 4: Simplify right side
    3,105.95x = 4,776,646.21
  5. Step 5: Solve for x
    x = 4,776,646.21/3,105.95
  6. Step 6: Final answer
    x = 1,537.90

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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.