Home / 4,039.56-5,576.76-2,720.25

Finding the Fourth Proportional to 4,039.56, 5,576.76 and 2,720.25

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Solution

The fourth proportional to 4,039.56, 5,576.76 and 2,720.25 is: 3,755.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,039.56 : 5,576.76 = 2,720.25 : x
  2. Step 2: Convert to fraction form
    4,039.56/5,576.76 = 2,720.25/x
  3. Step 3: Cross multiply
    4,039.56x = 5,576.76 × 2,720.25
  4. Step 4: Simplify right side
    4,039.56x = 15,170,181.39
  5. Step 5: Solve for x
    x = 15,170,181.39/4,039.56
  6. Step 6: Final answer
    x = 3,755.40

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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.