Home / 5,231.05-7,218.52-4,813.09

Finding the Fourth Proportional to 5,231.05, 7,218.52 and 4,813.09

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Solution

The fourth proportional to 5,231.05, 7,218.52 and 4,813.09 is: 6,641.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,231.05 : 7,218.52 = 4,813.09 : x
  2. Step 2: Convert to fraction form
    5,231.05/7,218.52 = 4,813.09/x
  3. Step 3: Cross multiply
    5,231.05x = 7,218.52 × 4,813.09
  4. Step 4: Simplify right side
    5,231.05x = 34,743,386.43
  5. Step 5: Solve for x
    x = 34,743,386.43/5,231.05
  6. Step 6: Final answer
    x = 6,641.76

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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.