Home / 4,142.15-5,715.75-2,548.90

Finding the Fourth Proportional to 4,142.15, 5,715.75 and 2,548.90

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Solution

The fourth proportional to 4,142.15, 5,715.75 and 2,548.90 is: 3,517.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,142.15 : 5,715.75 = 2,548.90 : x
  2. Step 2: Convert to fraction form
    4,142.15/5,715.75 = 2,548.90/x
  3. Step 3: Cross multiply
    4,142.15x = 5,715.75 × 2,548.90
  4. Step 4: Simplify right side
    4,142.15x = 14,568,877.54
  5. Step 5: Solve for x
    x = 14,568,877.54/4,142.15
  6. Step 6: Final answer
    x = 3,517.22

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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.