Home / 4,179.72-5,771.85-2,690.25

Finding the Fourth Proportional to 4,179.72, 5,771.85 and 2,690.25

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Solution

The fourth proportional to 4,179.72, 5,771.85 and 2,690.25 is: 3,715.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,179.72 : 5,771.85 = 2,690.25 : x
  2. Step 2: Convert to fraction form
    4,179.72/5,771.85 = 2,690.25/x
  3. Step 3: Cross multiply
    4,179.72x = 5,771.85 × 2,690.25
  4. Step 4: Simplify right side
    4,179.72x = 15,527,719.46
  5. Step 5: Solve for x
    x = 15,527,719.46/4,179.72
  6. Step 6: Final answer
    x = 3,715.01

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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.