Home / 4,185.60-5,776.56-2,858.28

Finding the Fourth Proportional to 4,185.60, 5,776.56 and 2,858.28

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Solution

The fourth proportional to 4,185.60, 5,776.56 and 2,858.28 is: 3,944.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,185.60 : 5,776.56 = 2,858.28 : x
  2. Step 2: Convert to fraction form
    4,185.60/5,776.56 = 2,858.28/x
  3. Step 3: Cross multiply
    4,185.60x = 5,776.56 × 2,858.28
  4. Step 4: Simplify right side
    4,185.60x = 16,511,025.92
  5. Step 5: Solve for x
    x = 16,511,025.92/4,185.60
  6. Step 6: Final answer
    x = 3,944.72

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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.