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Finding the Fourth Proportional to 3,350.81, 4,623.81 and 1,858.66

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Solution

The fourth proportional to 3,350.81, 4,623.81 and 1,858.66 is: 2,564.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,350.81 : 4,623.81 = 1,858.66 : x
  2. Step 2: Convert to fraction form
    3,350.81/4,623.81 = 1,858.66/x
  3. Step 3: Cross multiply
    3,350.81x = 4,623.81 × 1,858.66
  4. Step 4: Simplify right side
    3,350.81x = 8,594,090.69
  5. Step 5: Solve for x
    x = 8,594,090.69/3,350.81
  6. Step 6: Final answer
    x = 2,564.78

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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.