Home / 4,380.81-6,042.09-2,809.05

Finding the Fourth Proportional to 4,380.81, 6,042.09 and 2,809.05

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Solution

The fourth proportional to 4,380.81, 6,042.09 and 2,809.05 is: 3,874.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,380.81 : 6,042.09 = 2,809.05 : x
  2. Step 2: Convert to fraction form
    4,380.81/6,042.09 = 2,809.05/x
  3. Step 3: Cross multiply
    4,380.81x = 6,042.09 × 2,809.05
  4. Step 4: Simplify right side
    4,380.81x = 16,972,532.91
  5. Step 5: Solve for x
    x = 16,972,532.91/4,380.81
  6. Step 6: Final answer
    x = 3,874.29

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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.