Home / 1,110.27-1,664.85-379.59

Finding the Fourth Proportional to 1,110.27, 1,664.85 and 379.59

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Solution

The fourth proportional to 1,110.27, 1,664.85 and 379.59 is: 569.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,110.27 : 1,664.85 = 379.59 : x
  2. Step 2: Convert to fraction form
    1,110.27/1,664.85 = 379.59/x
  3. Step 3: Cross multiply
    1,110.27x = 1,664.85 × 379.59
  4. Step 4: Simplify right side
    1,110.27x = 631,960.41
  5. Step 5: Solve for x
    x = 631,960.41/1,110.27
  6. Step 6: Final answer
    x = 569.20

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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.