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Finding the Fourth Proportional to 8,819.84, 13,230.99 and 2,580.31

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Solution

The fourth proportional to 8,819.84, 13,230.99 and 2,580.31 is: 3,870.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,819.84 : 13,230.99 = 2,580.31 : x
  2. Step 2: Convert to fraction form
    8,819.84/13,230.99 = 2,580.31/x
  3. Step 3: Cross multiply
    8,819.84x = 13,230.99 × 2,580.31
  4. Step 4: Simplify right side
    8,819.84x = 34,140,055.81
  5. Step 5: Solve for x
    x = 34,140,055.81/8,819.84
  6. Step 6: Final answer
    x = 3,870.82

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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.