Home / 7,588.21-11,387.43-2,657.89

Finding the Fourth Proportional to 7,588.21, 11,387.43 and 2,657.89

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Solution

The fourth proportional to 7,588.21, 11,387.43 and 2,657.89 is: 3,988.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,588.21 : 11,387.43 = 2,657.89 : x
  2. Step 2: Convert to fraction form
    7,588.21/11,387.43 = 2,657.89/x
  3. Step 3: Cross multiply
    7,588.21x = 11,387.43 × 2,657.89
  4. Step 4: Simplify right side
    7,588.21x = 30,266,507.85
  5. Step 5: Solve for x
    x = 30,266,507.85/7,588.21
  6. Step 6: Final answer
    x = 3,988.62

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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.