Home / 4,177.80-5,765.88-2,499.20

Finding the Fourth Proportional to 4,177.80, 5,765.88 and 2,499.20

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Solution

The fourth proportional to 4,177.80, 5,765.88 and 2,499.20 is: 3,449.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,177.80 : 5,765.88 = 2,499.20 : x
  2. Step 2: Convert to fraction form
    4,177.80/5,765.88 = 2,499.20/x
  3. Step 3: Cross multiply
    4,177.80x = 5,765.88 × 2,499.20
  4. Step 4: Simplify right side
    4,177.80x = 14,410,087.30
  5. Step 5: Solve for x
    x = 14,410,087.30/4,177.80
  6. Step 6: Final answer
    x = 3,449.20

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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.