Home / 5,179.56-7,147.88-3,083.28

Finding the Fourth Proportional to 5,179.56, 7,147.88 and 3,083.28

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Solution

The fourth proportional to 5,179.56, 7,147.88 and 3,083.28 is: 4,254.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,179.56 : 7,147.88 = 3,083.28 : x
  2. Step 2: Convert to fraction form
    5,179.56/7,147.88 = 3,083.28/x
  3. Step 3: Cross multiply
    5,179.56x = 7,147.88 × 3,083.28
  4. Step 4: Simplify right side
    5,179.56x = 22,038,915.45
  5. Step 5: Solve for x
    x = 22,038,915.45/5,179.56
  6. Step 6: Final answer
    x = 4,254.98

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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.