Home / 3,127.77-4,336.05-2,961.32

Finding the Fourth Proportional to 3,127.77, 4,336.05 and 2,961.32

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Solution

The fourth proportional to 3,127.77, 4,336.05 and 2,961.32 is: 4,105.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,127.77 : 4,336.05 = 2,961.32 : x
  2. Step 2: Convert to fraction form
    3,127.77/4,336.05 = 2,961.32/x
  3. Step 3: Cross multiply
    3,127.77x = 4,336.05 × 2,961.32
  4. Step 4: Simplify right side
    3,127.77x = 12,840,409.91
  5. Step 5: Solve for x
    x = 12,840,409.91/3,127.77
  6. Step 6: Final answer
    x = 4,105.29

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.