Home / 5,481.81-8,226.36-5,117.31

Finding the Fourth Proportional to 5,481.81, 8,226.36 and 5,117.31

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Solution

The fourth proportional to 5,481.81, 8,226.36 and 5,117.31 is: 7,679.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,481.81 : 8,226.36 = 5,117.31 : x
  2. Step 2: Convert to fraction form
    5,481.81/8,226.36 = 5,117.31/x
  3. Step 3: Cross multiply
    5,481.81x = 8,226.36 × 5,117.31
  4. Step 4: Simplify right side
    5,481.81x = 42,096,834.29
  5. Step 5: Solve for x
    x = 42,096,834.29/5,481.81
  6. Step 6: Final answer
    x = 7,679.37

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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.