Home / 3,808.30-5,255.49-2,215.03

Finding the Fourth Proportional to 3,808.30, 5,255.49 and 2,215.03

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Solution

The fourth proportional to 3,808.30, 5,255.49 and 2,215.03 is: 3,056.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,808.30 : 5,255.49 = 2,215.03 : x
  2. Step 2: Convert to fraction form
    3,808.30/5,255.49 = 2,215.03/x
  3. Step 3: Cross multiply
    3,808.30x = 5,255.49 × 2,215.03
  4. Step 4: Simplify right side
    3,808.30x = 11,641,068.01
  5. Step 5: Solve for x
    x = 11,641,068.01/3,808.30
  6. Step 6: Final answer
    x = 3,056.76

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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.