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Finding the Fourth Proportional to 3,986.43, 6,002.80 and 2,953.74

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Solution

The fourth proportional to 3,986.43, 6,002.80 and 2,953.74 is: 4,447.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,986.43 : 6,002.80 = 2,953.74 : x
  2. Step 2: Convert to fraction form
    3,986.43/6,002.80 = 2,953.74/x
  3. Step 3: Cross multiply
    3,986.43x = 6,002.80 × 2,953.74
  4. Step 4: Simplify right side
    3,986.43x = 17,730,725.60
  5. Step 5: Solve for x
    x = 17,730,725.60/3,986.43
  6. Step 6: Final answer
    x = 4,447.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.