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Finding the Fourth Proportional to 3,960.01, 5,940.06 and 1,038.61

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Solution

The fourth proportional to 3,960.01, 5,940.06 and 1,038.61 is: 1,557.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,960.01 : 5,940.06 = 1,038.61 : x
  2. Step 2: Convert to fraction form
    3,960.01/5,940.06 = 1,038.61/x
  3. Step 3: Cross multiply
    3,960.01x = 5,940.06 × 1,038.61
  4. Step 4: Simplify right side
    3,960.01x = 6,169,405.72
  5. Step 5: Solve for x
    x = 6,169,405.72/3,960.01
  6. Step 6: Final answer
    x = 1,557.93

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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.