Home / 5,185.77-7,780.20-2,414.08

Finding the Fourth Proportional to 5,185.77, 7,780.20 and 2,414.08

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Solution

The fourth proportional to 5,185.77, 7,780.20 and 2,414.08 is: 3,621.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,185.77 : 7,780.20 = 2,414.08 : x
  2. Step 2: Convert to fraction form
    5,185.77/7,780.20 = 2,414.08/x
  3. Step 3: Cross multiply
    5,185.77x = 7,780.20 × 2,414.08
  4. Step 4: Simplify right side
    5,185.77x = 18,782,025.22
  5. Step 5: Solve for x
    x = 18,782,025.22/5,185.77
  6. Step 6: Final answer
    x = 3,621.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.