Home / 5,205.37-7,183.40-2,815.34

Finding the Fourth Proportional to 5,205.37, 7,183.40 and 2,815.34

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Solution

The fourth proportional to 5,205.37, 7,183.40 and 2,815.34 is: 3,885.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,205.37 : 7,183.40 = 2,815.34 : x
  2. Step 2: Convert to fraction form
    5,205.37/7,183.40 = 2,815.34/x
  3. Step 3: Cross multiply
    5,205.37x = 7,183.40 × 2,815.34
  4. Step 4: Simplify right side
    5,205.37x = 20,223,713.36
  5. Step 5: Solve for x
    x = 20,223,713.36/5,205.37
  6. Step 6: Final answer
    x = 3,885.16

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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.