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Finding the Fourth Proportional to 3,971.89, 5,957.84 and 1,374.63

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Solution

The fourth proportional to 3,971.89, 5,957.84 and 1,374.63 is: 2,061.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,971.89 : 5,957.84 = 1,374.63 : x
  2. Step 2: Convert to fraction form
    3,971.89/5,957.84 = 1,374.63/x
  3. Step 3: Cross multiply
    3,971.89x = 5,957.84 × 1,374.63
  4. Step 4: Simplify right side
    3,971.89x = 8,189,825.60
  5. Step 5: Solve for x
    x = 8,189,825.60/3,971.89
  6. Step 6: Final answer
    x = 2,061.95

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1.5x scale

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.