Home / 5,115.42-7,059.96-3,943.08

Finding the Fourth Proportional to 5,115.42, 7,059.96 and 3,943.08

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Solution

The fourth proportional to 5,115.42, 7,059.96 and 3,943.08 is: 5,441.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,115.42 : 7,059.96 = 3,943.08 : x
  2. Step 2: Convert to fraction form
    5,115.42/7,059.96 = 3,943.08/x
  3. Step 3: Cross multiply
    5,115.42x = 7,059.96 × 3,943.08
  4. Step 4: Simplify right side
    5,115.42x = 27,837,987.08
  5. Step 5: Solve for x
    x = 27,837,987.08/5,115.42
  6. Step 6: Final answer
    x = 5,441.97

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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.