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Finding the Fourth Proportional to 1,624.36, 2,241.62 and 878.33

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Solution

The fourth proportional to 1,624.36, 2,241.62 and 878.33 is: 1,212.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,624.36 : 2,241.62 = 878.33 : x
  2. Step 2: Convert to fraction form
    1,624.36/2,241.62 = 878.33/x
  3. Step 3: Cross multiply
    1,624.36x = 2,241.62 × 878.33
  4. Step 4: Simplify right side
    1,624.36x = 1,968,868.69
  5. Step 5: Solve for x
    x = 1,968,868.69/1,624.36
  6. Step 6: Final answer
    x = 1,212.09

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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.