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Finding the Fourth Proportional to 3,986.96, 5,988.96 and 2,953.62

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Solution

The fourth proportional to 3,986.96, 5,988.96 and 2,953.62 is: 4,436.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,986.96 : 5,988.96 = 2,953.62 : x
  2. Step 2: Convert to fraction form
    3,986.96/5,988.96 = 2,953.62/x
  3. Step 3: Cross multiply
    3,986.96x = 5,988.96 × 2,953.62
  4. Step 4: Simplify right side
    3,986.96x = 17,689,112.04
  5. Step 5: Solve for x
    x = 17,689,112.04/3,986.96
  6. Step 6: Final answer
    x = 4,436.75

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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.