Home / 2,771.85-3,824.10-1,777.71

Finding the Fourth Proportional to 2,771.85, 3,824.10 and 1,777.71

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Solution

The fourth proportional to 2,771.85, 3,824.10 and 1,777.71 is: 2,452.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,771.85 : 3,824.10 = 1,777.71 : x
  2. Step 2: Convert to fraction form
    2,771.85/3,824.10 = 1,777.71/x
  3. Step 3: Cross multiply
    2,771.85x = 3,824.10 × 1,777.71
  4. Step 4: Simplify right side
    2,771.85x = 6,798,140.81
  5. Step 5: Solve for x
    x = 6,798,140.81/2,771.85
  6. Step 6: Final answer
    x = 2,452.56

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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.