Home / 3,778.02-5,213.70-2,207.07

Finding the Fourth Proportional to 3,778.02, 5,213.70 and 2,207.07

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Solution

The fourth proportional to 3,778.02, 5,213.70 and 2,207.07 is: 3,045.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,778.02 : 5,213.70 = 2,207.07 : x
  2. Step 2: Convert to fraction form
    3,778.02/5,213.70 = 2,207.07/x
  3. Step 3: Cross multiply
    3,778.02x = 5,213.70 × 2,207.07
  4. Step 4: Simplify right side
    3,778.02x = 11,507,000.86
  5. Step 5: Solve for x
    x = 11,507,000.86/3,778.02
  6. Step 6: Final answer
    x = 3,045.78

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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.