Home / 5,078.24-7,617.36-2,857.22

Finding the Fourth Proportional to 5,078.24, 7,617.36 and 2,857.22

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Solution

The fourth proportional to 5,078.24, 7,617.36 and 2,857.22 is: 4,285.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,078.24 : 7,617.36 = 2,857.22 : x
  2. Step 2: Convert to fraction form
    5,078.24/7,617.36 = 2,857.22/x
  3. Step 3: Cross multiply
    5,078.24x = 7,617.36 × 2,857.22
  4. Step 4: Simplify right side
    5,078.24x = 21,764,473.34
  5. Step 5: Solve for x
    x = 21,764,473.34/5,078.24
  6. Step 6: Final answer
    x = 4,285.83

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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.