Home / 3,809.16-5,256.58-2,215.88

Finding the Fourth Proportional to 3,809.16, 5,256.58 and 2,215.88

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Solution

The fourth proportional to 3,809.16, 5,256.58 and 2,215.88 is: 3,057.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,809.16 : 5,256.58 = 2,215.88 : x
  2. Step 2: Convert to fraction form
    3,809.16/5,256.58 = 2,215.88/x
  3. Step 3: Cross multiply
    3,809.16x = 5,256.58 × 2,215.88
  4. Step 4: Simplify right side
    3,809.16x = 11,647,950.49
  5. Step 5: Solve for x
    x = 11,647,950.49/3,809.16
  6. Step 6: Final answer
    x = 3,057.88

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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.