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Finding the Fourth Proportional to 3,421.42, 4,721.04 and 2,004.88

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Solution

The fourth proportional to 3,421.42, 4,721.04 and 2,004.88 is: 2,766.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,421.42 : 4,721.04 = 2,004.88 : x
  2. Step 2: Convert to fraction form
    3,421.42/4,721.04 = 2,004.88/x
  3. Step 3: Cross multiply
    3,421.42x = 4,721.04 × 2,004.88
  4. Step 4: Simplify right side
    3,421.42x = 9,465,118.68
  5. Step 5: Solve for x
    x = 9,465,118.68/3,421.42
  6. Step 6: Final answer
    x = 2,766.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.