Home / 5,456.40-8,183.80-1,758.15

Finding the Fourth Proportional to 5,456.40, 8,183.80 and 1,758.15

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Solution

The fourth proportional to 5,456.40, 8,183.80 and 1,758.15 is: 2,636.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,456.40 : 8,183.80 = 1,758.15 : x
  2. Step 2: Convert to fraction form
    5,456.40/8,183.80 = 1,758.15/x
  3. Step 3: Cross multiply
    5,456.40x = 8,183.80 × 1,758.15
  4. Step 4: Simplify right side
    5,456.40x = 14,388,347.97
  5. Step 5: Solve for x
    x = 14,388,347.97/5,456.40
  6. Step 6: Final answer
    x = 2,636.97

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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.