Home / 5,189.30-7,783.73-2,415.02

Finding the Fourth Proportional to 5,189.30, 7,783.73 and 2,415.02

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Solution

The fourth proportional to 5,189.30, 7,783.73 and 2,415.02 is: 3,622.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,189.30 : 7,783.73 = 2,415.02 : x
  2. Step 2: Convert to fraction form
    5,189.30/7,783.73 = 2,415.02/x
  3. Step 3: Cross multiply
    5,189.30x = 7,783.73 × 2,415.02
  4. Step 4: Simplify right side
    5,189.30x = 18,797,821.69
  5. Step 5: Solve for x
    x = 18,797,821.69/5,189.30
  6. Step 6: Final answer
    x = 3,622.42

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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.