Home / 1,220.69-1,830.34-376.17

Finding the Fourth Proportional to 1,220.69, 1,830.34 and 376.17

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Solution

The fourth proportional to 1,220.69, 1,830.34 and 376.17 is: 564.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220.69 : 1,830.34 = 376.17 : x
  2. Step 2: Convert to fraction form
    1,220.69/1,830.34 = 376.17/x
  3. Step 3: Cross multiply
    1,220.69x = 1,830.34 × 376.17
  4. Step 4: Simplify right side
    1,220.69x = 688,512.54
  5. Step 5: Solve for x
    x = 688,512.54/1,220.69
  6. Step 6: Final answer
    x = 564.04

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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.