Home / 5,205.18-7,183.10-2,847.34

Finding the Fourth Proportional to 5,205.18, 7,183.10 and 2,847.34

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Solution

The fourth proportional to 5,205.18, 7,183.10 and 2,847.34 is: 3,929.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,205.18 : 7,183.10 = 2,847.34 : x
  2. Step 2: Convert to fraction form
    5,205.18/7,183.10 = 2,847.34/x
  3. Step 3: Cross multiply
    5,205.18x = 7,183.10 × 2,847.34
  4. Step 4: Simplify right side
    5,205.18x = 20,452,727.95
  5. Step 5: Solve for x
    x = 20,452,727.95/5,205.18
  6. Step 6: Final answer
    x = 3,929.30

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Half scale
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Double scale
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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.