Home / 3,725.08-5,140.41-2,131.63

Finding the Fourth Proportional to 3,725.08, 5,140.41 and 2,131.63

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Solution

The fourth proportional to 3,725.08, 5,140.41 and 2,131.63 is: 2,941.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,725.08 : 5,140.41 = 2,131.63 : x
  2. Step 2: Convert to fraction form
    3,725.08/5,140.41 = 2,131.63/x
  3. Step 3: Cross multiply
    3,725.08x = 5,140.41 × 2,131.63
  4. Step 4: Simplify right side
    3,725.08x = 10,957,452.17
  5. Step 5: Solve for x
    x = 10,957,452.17/3,725.08
  6. Step 6: Final answer
    x = 2,941.53

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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.