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Finding the Fourth Proportional to 3,168.86, 4,372.04 and 1,842.30

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Solution

The fourth proportional to 3,168.86, 4,372.04 and 1,842.30 is: 2,541.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,168.86 : 4,372.04 = 1,842.30 : x
  2. Step 2: Convert to fraction form
    3,168.86/4,372.04 = 1,842.30/x
  3. Step 3: Cross multiply
    3,168.86x = 4,372.04 × 1,842.30
  4. Step 4: Simplify right side
    3,168.86x = 8,054,609.29
  5. Step 5: Solve for x
    x = 8,054,609.29/3,168.86
  6. Step 6: Final answer
    x = 2,541.80

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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.