Home / 1,645.59-2,270.96-927.89

Finding the Fourth Proportional to 1,645.59, 2,270.96 and 927.89

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Solution

The fourth proportional to 1,645.59, 2,270.96 and 927.89 is: 1,280.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,645.59 : 2,270.96 = 927.89 : x
  2. Step 2: Convert to fraction form
    1,645.59/2,270.96 = 927.89/x
  3. Step 3: Cross multiply
    1,645.59x = 2,270.96 × 927.89
  4. Step 4: Simplify right side
    1,645.59x = 2,107,201.07
  5. Step 5: Solve for x
    x = 2,107,201.07/1,645.59
  6. Step 6: Final answer
    x = 1,280.51

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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.