Home / 5,176.28-7,145.34-3,080

Finding the Fourth Proportional to 5,176.28, 7,145.34 and 3,080

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Solution

The fourth proportional to 5,176.28, 7,145.34 and 3,080 is: 4,251.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,176.28 : 7,145.34 = 3,080 : x
  2. Step 2: Convert to fraction form
    5,176.28/7,145.34 = 3,080/x
  3. Step 3: Cross multiply
    5,176.28x = 7,145.34 × 3,080
  4. Step 4: Simplify right side
    5,176.28x = 22,007,647.20
  5. Step 5: Solve for x
    x = 22,007,647.20/5,176.28
  6. Step 6: Final answer
    x = 4,251.63

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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.