Home / 3,778.84-5,213.73-2,381.59

Finding the Fourth Proportional to 3,778.84, 5,213.73 and 2,381.59

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Solution

The fourth proportional to 3,778.84, 5,213.73 and 2,381.59 is: 3,285.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,778.84 : 5,213.73 = 2,381.59 : x
  2. Step 2: Convert to fraction form
    3,778.84/5,213.73 = 2,381.59/x
  3. Step 3: Cross multiply
    3,778.84x = 5,213.73 × 2,381.59
  4. Step 4: Simplify right side
    3,778.84x = 12,416,967.23
  5. Step 5: Solve for x
    x = 12,416,967.23/3,778.84
  6. Step 6: Final answer
    x = 3,285.92

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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.