Home / 3,778.76-5,213.88-2,206.14

Finding the Fourth Proportional to 3,778.76, 5,213.88 and 2,206.14

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Solution

The fourth proportional to 3,778.76, 5,213.88 and 2,206.14 is: 3,044.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,778.76 : 5,213.88 = 2,206.14 : x
  2. Step 2: Convert to fraction form
    3,778.76/5,213.88 = 2,206.14/x
  3. Step 3: Cross multiply
    3,778.76x = 5,213.88 × 2,206.14
  4. Step 4: Simplify right side
    3,778.76x = 11,502,549.22
  5. Step 5: Solve for x
    x = 11,502,549.22/3,778.76
  6. Step 6: Final answer
    x = 3,044.01

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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.