Home / 3,739.56-5,156.58-2,480.21

Finding the Fourth Proportional to 3,739.56, 5,156.58 and 2,480.21

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Solution

The fourth proportional to 3,739.56, 5,156.58 and 2,480.21 is: 3,420.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,739.56 : 5,156.58 = 2,480.21 : x
  2. Step 2: Convert to fraction form
    3,739.56/5,156.58 = 2,480.21/x
  3. Step 3: Cross multiply
    3,739.56x = 5,156.58 × 2,480.21
  4. Step 4: Simplify right side
    3,739.56x = 12,789,401.28
  5. Step 5: Solve for x
    x = 12,789,401.28/3,739.56
  6. Step 6: Final answer
    x = 3,420.03

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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.