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Finding the Fourth Proportional to 4,420.05, 6,629.05 and 1,953.53

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Solution

The fourth proportional to 4,420.05, 6,629.05 and 1,953.53 is: 2,929.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,420.05 : 6,629.05 = 1,953.53 : x
  2. Step 2: Convert to fraction form
    4,420.05/6,629.05 = 1,953.53/x
  3. Step 3: Cross multiply
    4,420.05x = 6,629.05 × 1,953.53
  4. Step 4: Simplify right side
    4,420.05x = 12,950,005.13
  5. Step 5: Solve for x
    x = 12,950,005.13/4,420.05
  6. Step 6: Final answer
    x = 2,929.83

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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.