Home / 5,212.80-7,813.74-3,751.16

Finding the Fourth Proportional to 5,212.80, 7,813.74 and 3,751.16

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Solution

The fourth proportional to 5,212.80, 7,813.74 and 3,751.16 is: 5,622.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,212.80 : 7,813.74 = 3,751.16 : x
  2. Step 2: Convert to fraction form
    5,212.80/7,813.74 = 3,751.16/x
  3. Step 3: Cross multiply
    5,212.80x = 7,813.74 × 3,751.16
  4. Step 4: Simplify right side
    5,212.80x = 29,310,588.94
  5. Step 5: Solve for x
    x = 29,310,588.94/5,212.80
  6. Step 6: Final answer
    x = 5,622.81

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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.