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Finding the Fourth Proportional to 7,580.99, 11,363.69 and 2,899.90

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Solution

The fourth proportional to 7,580.99, 11,363.69 and 2,899.90 is: 4,346.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,580.99 : 11,363.69 = 2,899.90 : x
  2. Step 2: Convert to fraction form
    7,580.99/11,363.69 = 2,899.90/x
  3. Step 3: Cross multiply
    7,580.99x = 11,363.69 × 2,899.90
  4. Step 4: Simplify right side
    7,580.99x = 32,953,586.09
  5. Step 5: Solve for x
    x = 32,953,586.09/7,580.99
  6. Step 6: Final answer
    x = 4,346.87

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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.