Home / 3,860.12-5,783.70-3,089

Finding the Fourth Proportional to 3,860.12, 5,783.70 and 3,089

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Solution

The fourth proportional to 3,860.12, 5,783.70 and 3,089 is: 4,628.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,860.12 : 5,783.70 = 3,089 : x
  2. Step 2: Convert to fraction form
    3,860.12/5,783.70 = 3,089/x
  3. Step 3: Cross multiply
    3,860.12x = 5,783.70 × 3,089
  4. Step 4: Simplify right side
    3,860.12x = 17,865,849.30
  5. Step 5: Solve for x
    x = 17,865,849.30/3,860.12
  6. Step 6: Final answer
    x = 4,628.31

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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.