Home / 5,212.90-7,193.82-2,855.08

Finding the Fourth Proportional to 5,212.90, 7,193.82 and 2,855.08

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Solution

The fourth proportional to 5,212.90, 7,193.82 and 2,855.08 is: 3,940.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,212.90 : 7,193.82 = 2,855.08 : x
  2. Step 2: Convert to fraction form
    5,212.90/7,193.82 = 2,855.08/x
  3. Step 3: Cross multiply
    5,212.90x = 7,193.82 × 2,855.08
  4. Step 4: Simplify right side
    5,212.90x = 20,538,931.61
  5. Step 5: Solve for x
    x = 20,538,931.61/5,212.90
  6. Step 6: Final answer
    x = 3,940.02

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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.