Home / 5,428.89-8,142.91-2,507.22

Finding the Fourth Proportional to 5,428.89, 8,142.91 and 2,507.22

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Solution

The fourth proportional to 5,428.89, 8,142.91 and 2,507.22 is: 3,760.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,428.89 : 8,142.91 = 2,507.22 : x
  2. Step 2: Convert to fraction form
    5,428.89/8,142.91 = 2,507.22/x
  3. Step 3: Cross multiply
    5,428.89x = 8,142.91 × 2,507.22
  4. Step 4: Simplify right side
    5,428.89x = 20,416,060.54
  5. Step 5: Solve for x
    x = 20,416,060.54/5,428.89
  6. Step 6: Final answer
    x = 3,760.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.