Home / 5,179.63-7,147.64-2,941.21

Finding the Fourth Proportional to 5,179.63, 7,147.64 and 2,941.21

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Solution

The fourth proportional to 5,179.63, 7,147.64 and 2,941.21 is: 4,058.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,179.63 : 7,147.64 = 2,941.21 : x
  2. Step 2: Convert to fraction form
    5,179.63/7,147.64 = 2,941.21/x
  3. Step 3: Cross multiply
    5,179.63x = 7,147.64 × 2,941.21
  4. Step 4: Simplify right side
    5,179.63x = 21,022,726.53
  5. Step 5: Solve for x
    x = 21,022,726.53/5,179.63
  6. Step 6: Final answer
    x = 4,058.73

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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.