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Finding the Fourth Proportional to 3,481.66, 4,804.54 and 1,909.65

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Solution

The fourth proportional to 3,481.66, 4,804.54 and 1,909.65 is: 2,635.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,481.66 : 4,804.54 = 1,909.65 : x
  2. Step 2: Convert to fraction form
    3,481.66/4,804.54 = 1,909.65/x
  3. Step 3: Cross multiply
    3,481.66x = 4,804.54 × 1,909.65
  4. Step 4: Simplify right side
    3,481.66x = 9,174,989.81
  5. Step 5: Solve for x
    x = 9,174,989.81/3,481.66
  6. Step 6: Final answer
    x = 2,635.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.