Home / 5,077.08-7,008.12-3,896.64

Finding the Fourth Proportional to 5,077.08, 7,008.12 and 3,896.64

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Solution

The fourth proportional to 5,077.08, 7,008.12 and 3,896.64 is: 5,378.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,077.08 : 7,008.12 = 3,896.64 : x
  2. Step 2: Convert to fraction form
    5,077.08/7,008.12 = 3,896.64/x
  3. Step 3: Cross multiply
    5,077.08x = 7,008.12 × 3,896.64
  4. Step 4: Simplify right side
    5,077.08x = 27,308,120.72
  5. Step 5: Solve for x
    x = 27,308,120.72/5,077.08
  6. Step 6: Final answer
    x = 5,378.71

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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.