Home / 1,939.83-2,910.14-553.59

Finding the Fourth Proportional to 1,939.83, 2,910.14 and 553.59

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Solution

The fourth proportional to 1,939.83, 2,910.14 and 553.59 is: 830.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,939.83 : 2,910.14 = 553.59 : x
  2. Step 2: Convert to fraction form
    1,939.83/2,910.14 = 553.59/x
  3. Step 3: Cross multiply
    1,939.83x = 2,910.14 × 553.59
  4. Step 4: Simplify right side
    1,939.83x = 1,611,021.63
  5. Step 5: Solve for x
    x = 1,611,021.63/1,939.83
  6. Step 6: Final answer
    x = 830.50

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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.