Home / 3,725.15-5,143.23-2,845.49

Finding the Fourth Proportional to 3,725.15, 5,143.23 and 2,845.49

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Solution

The fourth proportional to 3,725.15, 5,143.23 and 2,845.49 is: 3,928.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,725.15 : 5,143.23 = 2,845.49 : x
  2. Step 2: Convert to fraction form
    3,725.15/5,143.23 = 2,845.49/x
  3. Step 3: Cross multiply
    3,725.15x = 5,143.23 × 2,845.49
  4. Step 4: Simplify right side
    3,725.15x = 14,634,983.82
  5. Step 5: Solve for x
    x = 14,634,983.82/3,725.15
  6. Step 6: Final answer
    x = 3,928.70

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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.