Home / 3,809.43-5,257.05-2,130.93

Finding the Fourth Proportional to 3,809.43, 5,257.05 and 2,130.93

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Solution

The fourth proportional to 3,809.43, 5,257.05 and 2,130.93 is: 2,940.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,809.43 : 5,257.05 = 2,130.93 : x
  2. Step 2: Convert to fraction form
    3,809.43/5,257.05 = 2,130.93/x
  3. Step 3: Cross multiply
    3,809.43x = 5,257.05 × 2,130.93
  4. Step 4: Simplify right side
    3,809.43x = 11,202,405.56
  5. Step 5: Solve for x
    x = 11,202,405.56/3,809.43
  6. Step 6: Final answer
    x = 2,940.70

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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.