Home / 8,819.35-13,220.71-2,971.87

Finding the Fourth Proportional to 8,819.35, 13,220.71 and 2,971.87

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Solution

The fourth proportional to 8,819.35, 13,220.71 and 2,971.87 is: 4,455.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,819.35 : 13,220.71 = 2,971.87 : x
  2. Step 2: Convert to fraction form
    8,819.35/13,220.71 = 2,971.87/x
  3. Step 3: Cross multiply
    8,819.35x = 13,220.71 × 2,971.87
  4. Step 4: Simplify right side
    8,819.35x = 39,290,231.43
  5. Step 5: Solve for x
    x = 39,290,231.43/8,819.35
  6. Step 6: Final answer
    x = 4,455.00

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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.