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Finding the Fourth Proportional to 6,620.48, 9,929.08 and 2,237.84

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Solution

The fourth proportional to 6,620.48, 9,929.08 and 2,237.84 is: 3,356.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,620.48 : 9,929.08 = 2,237.84 : x
  2. Step 2: Convert to fraction form
    6,620.48/9,929.08 = 2,237.84/x
  3. Step 3: Cross multiply
    6,620.48x = 9,929.08 × 2,237.84
  4. Step 4: Simplify right side
    6,620.48x = 22,219,692.39
  5. Step 5: Solve for x
    x = 22,219,692.39/6,620.48
  6. Step 6: Final answer
    x = 3,356.21

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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.