Home / 5,179.30-7,147.63-2,941.38

Finding the Fourth Proportional to 5,179.30, 7,147.63 and 2,941.38

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Solution

The fourth proportional to 5,179.30, 7,147.63 and 2,941.38 is: 4,059.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,179.30 : 7,147.63 = 2,941.38 : x
  2. Step 2: Convert to fraction form
    5,179.30/7,147.63 = 2,941.38/x
  3. Step 3: Cross multiply
    5,179.30x = 7,147.63 × 2,941.38
  4. Step 4: Simplify right side
    5,179.30x = 21,023,895.93
  5. Step 5: Solve for x
    x = 21,023,895.93/5,179.30
  6. Step 6: Final answer
    x = 4,059.22

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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.