Home / 5,190.04-7,788.30-2,112.04

Finding the Fourth Proportional to 5,190.04, 7,788.30 and 2,112.04

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Solution

The fourth proportional to 5,190.04, 7,788.30 and 2,112.04 is: 3,169.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,190.04 : 7,788.30 = 2,112.04 : x
  2. Step 2: Convert to fraction form
    5,190.04/7,788.30 = 2,112.04/x
  3. Step 3: Cross multiply
    5,190.04x = 7,788.30 × 2,112.04
  4. Step 4: Simplify right side
    5,190.04x = 16,449,201.13
  5. Step 5: Solve for x
    x = 16,449,201.13/5,190.04
  6. Step 6: Final answer
    x = 3,169.38

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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.