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Finding the Fourth Proportional to 3,379.89, 4,663.22 and 2,671.86

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Solution

The fourth proportional to 3,379.89, 4,663.22 and 2,671.86 is: 3,686.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,379.89 : 4,663.22 = 2,671.86 : x
  2. Step 2: Convert to fraction form
    3,379.89/4,663.22 = 2,671.86/x
  3. Step 3: Cross multiply
    3,379.89x = 4,663.22 × 2,671.86
  4. Step 4: Simplify right side
    3,379.89x = 12,459,457.63
  5. Step 5: Solve for x
    x = 12,459,457.63/3,379.89
  6. Step 6: Final answer
    x = 3,686.35

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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.