Home / 5,205.08-7,182.96-2,847.21

Finding the Fourth Proportional to 5,205.08, 7,182.96 and 2,847.21

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Solution

The fourth proportional to 5,205.08, 7,182.96 and 2,847.21 is: 3,929.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,205.08 : 7,182.96 = 2,847.21 : x
  2. Step 2: Convert to fraction form
    5,205.08/7,182.96 = 2,847.21/x
  3. Step 3: Cross multiply
    5,205.08x = 7,182.96 × 2,847.21
  4. Step 4: Simplify right side
    5,205.08x = 20,451,395.54
  5. Step 5: Solve for x
    x = 20,451,395.54/5,205.08
  6. Step 6: Final answer
    x = 3,929.13

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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.