Home / 4,114.05-5,673.81-2,857.20

Finding the Fourth Proportional to 4,114.05, 5,673.81 and 2,857.20

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Solution

The fourth proportional to 4,114.05, 5,673.81 and 2,857.20 is: 3,940.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,114.05 : 5,673.81 = 2,857.20 : x
  2. Step 2: Convert to fraction form
    4,114.05/5,673.81 = 2,857.20/x
  3. Step 3: Cross multiply
    4,114.05x = 5,673.81 × 2,857.20
  4. Step 4: Simplify right side
    4,114.05x = 16,211,209.93
  5. Step 5: Solve for x
    x = 16,211,209.93/4,114.05
  6. Step 6: Final answer
    x = 3,940.45

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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.