Home / 6,489.03-8,936-5,637.89

Finding the Fourth Proportional to 6,489.03, 8,936 and 5,637.89

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Solution

The fourth proportional to 6,489.03, 8,936 and 5,637.89 is: 7,763.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,489.03 : 8,936 = 5,637.89 : x
  2. Step 2: Convert to fraction form
    6,489.03/8,936 = 5,637.89/x
  3. Step 3: Cross multiply
    6,489.03x = 8,936 × 5,637.89
  4. Step 4: Simplify right side
    6,489.03x = 50,380,185.04
  5. Step 5: Solve for x
    x = 50,380,185.04/6,489.03
  6. Step 6: Final answer
    x = 7,763.90

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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.