Home / 5,245.42-7,238.46-3,005.74

Finding the Fourth Proportional to 5,245.42, 7,238.46 and 3,005.74

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Solution

The fourth proportional to 5,245.42, 7,238.46 and 3,005.74 is: 4,147.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,245.42 : 7,238.46 = 3,005.74 : x
  2. Step 2: Convert to fraction form
    5,245.42/7,238.46 = 3,005.74/x
  3. Step 3: Cross multiply
    5,245.42x = 7,238.46 × 3,005.74
  4. Step 4: Simplify right side
    5,245.42x = 21,756,918.18
  5. Step 5: Solve for x
    x = 21,756,918.18/5,245.42
  6. Step 6: Final answer
    x = 4,147.79

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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.