Home / 3,127.44-4,310.86-2,118.83

Finding the Fourth Proportional to 3,127.44, 4,310.86 and 2,118.83

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Solution

The fourth proportional to 3,127.44, 4,310.86 and 2,118.83 is: 2,920.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,127.44 : 4,310.86 = 2,118.83 : x
  2. Step 2: Convert to fraction form
    3,127.44/4,310.86 = 2,118.83/x
  3. Step 3: Cross multiply
    3,127.44x = 4,310.86 × 2,118.83
  4. Step 4: Simplify right side
    3,127.44x = 9,133,990.01
  5. Step 5: Solve for x
    x = 9,133,990.01/3,127.44
  6. Step 6: Final answer
    x = 2,920.60

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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.