Home / 5,180.70-7,147.11-3,083.64

Finding the Fourth Proportional to 5,180.70, 7,147.11 and 3,083.64

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Solution

The fourth proportional to 5,180.70, 7,147.11 and 3,083.64 is: 4,254.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,180.70 : 7,147.11 = 3,083.64 : x
  2. Step 2: Convert to fraction form
    5,180.70/7,147.11 = 3,083.64/x
  3. Step 3: Cross multiply
    5,180.70x = 7,147.11 × 3,083.64
  4. Step 4: Simplify right side
    5,180.70x = 22,039,114.28
  5. Step 5: Solve for x
    x = 22,039,114.28/5,180.70
  6. Step 6: Final answer
    x = 4,254.08

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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.