Home / 3,156.41-4,739.22-2,612.05

Finding the Fourth Proportional to 3,156.41, 4,739.22 and 2,612.05

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Solution

The fourth proportional to 3,156.41, 4,739.22 and 2,612.05 is: 3,921.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,156.41 : 4,739.22 = 2,612.05 : x
  2. Step 2: Convert to fraction form
    3,156.41/4,739.22 = 2,612.05/x
  3. Step 3: Cross multiply
    3,156.41x = 4,739.22 × 2,612.05
  4. Step 4: Simplify right side
    3,156.41x = 12,379,079.60
  5. Step 5: Solve for x
    x = 12,379,079.60/3,156.41
  6. Step 6: Final answer
    x = 3,921.89

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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.