Home / 1,475.09-2,212.61-379.44

Finding the Fourth Proportional to 1,475.09, 2,212.61 and 379.44

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Solution

The fourth proportional to 1,475.09, 2,212.61 and 379.44 is: 569.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,475.09 : 2,212.61 = 379.44 : x
  2. Step 2: Convert to fraction form
    1,475.09/2,212.61 = 379.44/x
  3. Step 3: Cross multiply
    1,475.09x = 2,212.61 × 379.44
  4. Step 4: Simplify right side
    1,475.09x = 839,550.84
  5. Step 5: Solve for x
    x = 839,550.84/1,475.09
  6. Step 6: Final answer
    x = 569.15

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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.